diff --git a/interfaces/inner_api/ability_manager/include/ability_manager_client.h b/interfaces/inner_api/ability_manager/include/ability_manager_client.h
index 8a35f3ef3e..c7b40f38c0 100644
--- a/interfaces/inner_api/ability_manager/include/ability_manager_client.h
+++ b/interfaces/inner_api/ability_manager/include/ability_manager_client.h
@@ -1856,14 +1856,14 @@ public:
      *
      * @param element, The uiextension ElementName.
      * @param moduleName, The uiextension moduleName.
-     * @param hostBundleName, The uiextension caller hostBundleName.
+     * @param hostPid, The uiextension caller pid.
      * @param recordNum, The returned count of uiextension.
      * @param userId, The User Id.
      * @return Returns ERR_OK on success, others on failure.
      */
     ErrCode QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                           const std::string &moduleName,
-                                          const std::string &hostBundleName,
+                                          const int32_t hostPid,
                                           int32_t &recordNum,
                                           int32_t userId = DEFAULT_INVAL_VALUE);
 
diff --git a/interfaces/inner_api/ability_manager/include/ability_manager_interface.h b/interfaces/inner_api/ability_manager/include/ability_manager_interface.h
index db37c122b1..4b715a9c17 100644
--- a/interfaces/inner_api/ability_manager/include/ability_manager_interface.h
+++ b/interfaces/inner_api/ability_manager/include/ability_manager_interface.h
@@ -2270,7 +2270,7 @@ public:
      */
     virtual int32_t QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                   const std::string &moduleName,
-                                                  const std::string &hostBundleName,
+                                                  const int32_t hostPid,
                                                   int32_t &recordNum,
                                                   int32_t userId = DEFAULT_INVAL_VALUE)
     {
diff --git a/services/abilitymgr/include/ability_connect_manager.h b/services/abilitymgr/include/ability_connect_manager.h
index 57ecaf69c5..82f0478a53 100644
--- a/services/abilitymgr/include/ability_connect_manager.h
+++ b/services/abilitymgr/include/ability_connect_manager.h
@@ -141,7 +141,7 @@ public:
      */
     int QueryPreLoadUIExtensionRecordInner(const AppExecFwk::ElementName &element,
                                            const std::string &moduleName,
-                                           const std::string &hostBundleName,
+                                           const int32_t hostPid,
                                            int32_t &recordNum);
 
     /**
@@ -151,7 +151,7 @@ public:
      * @param hostBundleName, the caller application bundle name.
      * @return Returns ERR_OK on success, others on failure.
      */
-    int UnloadUIExtensionAbility(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord, std::string &bundleName);
+    int UnloadUIExtensionAbility(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord, pid_t &hostPid);
 
     /**
      * ClearPreloadUIExtensionRecord, clear preload uiextension record.
diff --git a/services/abilitymgr/include/ability_manager_proxy.h b/services/abilitymgr/include/ability_manager_proxy.h
index 1413d9c185..e14195bb91 100644
--- a/services/abilitymgr/include/ability_manager_proxy.h
+++ b/services/abilitymgr/include/ability_manager_proxy.h
@@ -1770,7 +1770,7 @@ public:
      */
     virtual int32_t QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                   const std::string &moduleName,
-                                                  const std::string &hostBundleName,
+                                                  const int32_t hostPid,
                                                   int32_t &recordNum,
                                                   int32_t userId = DEFAULT_INVAL_VALUE) override;
 
diff --git a/services/abilitymgr/include/ability_manager_service.h b/services/abilitymgr/include/ability_manager_service.h
index 9a971238c3..ab4d4c8f3b 100644
--- a/services/abilitymgr/include/ability_manager_service.h
+++ b/services/abilitymgr/include/ability_manager_service.h
@@ -489,7 +489,7 @@ public:
     int PreloadUIExtensionAbility(const Want &want, std::string &hostBundleName,
         int32_t userId = DEFAULT_INVAL_VALUE, int32_t hostPid = DEFAULT_INVAL_VALUE) override;
 
-    int UnloadUIExtensionAbility(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord, std::string &bundleName);
+    int UnloadUIExtensionAbility(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord, pid_t &hostPid);
 
     /**
      * Change the visibility state of an UIAbility.
@@ -2159,7 +2159,7 @@ public:
      */
     virtual int32_t QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                   const std::string &moduleName,
-                                                  const std::string &hostBundleName,
+                                                  const int32_t hostPid,
                                                   int32_t &recordNum,
                                                   int32_t userId = DEFAULT_INVAL_VALUE) override;
 
diff --git a/services/abilitymgr/include/extension_record/extension_record_manager.h b/services/abilitymgr/include/extension_record/extension_record_manager.h
index 40de7760d7..eb6ab2d71b 100644
--- a/services/abilitymgr/include/extension_record/extension_record_manager.h
+++ b/services/abilitymgr/include/extension_record/extension_record_manager.h
@@ -32,7 +32,7 @@ namespace AbilityRuntime {
 class ExtensionRecordManager : public std::enable_shared_from_this<ExtensionRecordManager> {
 public:
     using ExtensionAbilityRecordMap = std::map<int32_t, std::shared_ptr<ExtensionRecord>>;
-    using PreLoadUIExtensionMapKey = std::tuple<std::string, std::string, std::string, std::string>;
+    using PreLoadUIExtensionMapKey = std::tuple<std::string, std::string, std::string, pid_t>;
     using PreLoadUIExtensionMapType =
         std::map<PreLoadUIExtensionMapKey, std::vector<std::shared_ptr<ExtensionRecord>>>;
     explicit ExtensionRecordManager(const int32_t userId);
@@ -91,17 +91,17 @@ public:
         int32_t hostPid = AAFwk::DEFAULT_INVAL_VALUE);
 
     bool IsPreloadExtensionRecord(const AAFwk::AbilityRequest &abilityRequest,
-        const std::string &hostBundleName, std::shared_ptr<ExtensionRecord> &extensionRecord, bool &isLoaded);
+        const pid_t &hostPid, std::shared_ptr<ExtensionRecord> &extensionRecord, bool &isLoaded);
 
     int32_t AddPreloadUIExtensionRecord(const std::shared_ptr<AAFwk::AbilityRecord> abilityRecord);
 
     void RemoveAllPreloadUIExtensionRecord(PreLoadUIExtensionMapKey &preLoadUIExtensionInfo);
 
     bool RemovePreloadUIExtensionRecord(
-        const std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey);
+        const std::tuple<std::string, std::string, std::string, pid_t> extensionRecordMapKey);
 
     bool RemovePreloadUIExtensionRecordById(
-        const std::tuple<std::string, std::string, std::string, std::string> &extensionRecordMapKey,
+        const std::tuple<std::string, std::string, std::string, pid_t> &extensionRecordMapKey,
         int32_t extensionRecordId);
 
     int32_t GetOrCreateExtensionRecord(const AAFwk::AbilityRequest &abilityRequest, const std::string &hostBundleName,
@@ -121,7 +121,7 @@ public:
     void BackgroundTimeout(int32_t extensionRecordId);
     void TerminateTimeout(int32_t extensionRecordId);
 
-    int32_t GetHostBundleNameForExtensionId(int32_t extensionRecordId, std::string& hostBundleName);
+    int32_t GetHostPidForExtensionId(int32_t extensionRecordId, pid_t& hostPid);
     void GetCallerTokenList(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord,
         std::list<sptr<IRemoteObject>> &callerList);
 
@@ -136,7 +136,7 @@ public:
      */
     int32_t QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                           const std::string &moduleName,
-                                          const std::string &hostBundleName,
+                                          const int32_t hostPid,
                                           int32_t &recordNum);
 
 private:
diff --git a/services/abilitymgr/src/ability_connect_manager.cpp b/services/abilitymgr/src/ability_connect_manager.cpp
index e25038f463..8588e49692 100644
--- a/services/abilitymgr/src/ability_connect_manager.cpp
+++ b/services/abilitymgr/src/ability_connect_manager.cpp
@@ -618,14 +618,14 @@ int AbilityConnectManager::PreloadUIExtensionAbilityInner(const AbilityRequest &
 }
 
 int AbilityConnectManager::UnloadUIExtensionAbility(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord,
-    std::string &hostBundleName)
+    pid_t &hostPid)
 {
     TAG_LOGD(AAFwkTag::ABILITYMGR, "call");
     //Get preLoadUIExtensionInfo
     CHECK_POINTER_AND_RETURN(abilityRecord, ERR_INVALID_VALUE);
     auto preLoadUIExtensionInfo = std::make_tuple(abilityRecord->GetWant().GetElement().GetAbilityName(),
         abilityRecord->GetWant().GetElement().GetBundleName(),
-        abilityRecord->GetWant().GetElement().GetModuleName(), hostBundleName);
+        abilityRecord->GetWant().GetElement().GetModuleName(), hostPid);
     //delete preLoadUIExtensionMap
     CHECK_POINTER_AND_RETURN(uiExtensionAbilityRecordMgr_, ERR_NULL_OBJECT);
     auto extensionRecordId = abilityRecord->GetUIExtensionAbilityId();
@@ -2543,16 +2543,16 @@ void AbilityConnectManager::ClearPreloadUIExtensionRecord(const std::shared_ptr<
     TAG_LOGD(AAFwkTag::ABILITYMGR, "called");
     CHECK_POINTER(abilityRecord);
     auto extensionRecordId = abilityRecord->GetUIExtensionAbilityId();
-    std::string hostBundleName;
+    pid_t hostPid;
     CHECK_POINTER(uiExtensionAbilityRecordMgr_);
-    auto ret = uiExtensionAbilityRecordMgr_->GetHostBundleNameForExtensionId(extensionRecordId, hostBundleName);
+    auto ret = uiExtensionAbilityRecordMgr_->GetHostPidForExtensionId(extensionRecordId, hostPid);
     if (ret != ERR_OK) {
-        TAG_LOGE(AAFwkTag::ABILITYMGR, "GetHostBundleNameForExtensionId fail");
+        TAG_LOGE(AAFwkTag::ABILITYMGR, "GetHostPidForExtensionId fail");
         return;
     }
     auto extensionRecordMapKey = std::make_tuple(abilityRecord->GetWant().GetElement().GetAbilityName(),
         abilityRecord->GetWant().GetElement().GetBundleName(),
-        abilityRecord->GetWant().GetElement().GetModuleName(), hostBundleName);
+        abilityRecord->GetWant().GetElement().GetModuleName(), hostPid);
     uiExtensionAbilityRecordMgr_->RemovePreloadUIExtensionRecordById(extensionRecordMapKey, extensionRecordId);
 }
 
@@ -3837,12 +3837,12 @@ int32_t AbilityConnectManager::UpdateKeepAliveEnableState(const std::string &bun
 
 int32_t AbilityConnectManager::QueryPreLoadUIExtensionRecordInner(const AppExecFwk::ElementName &element,
                                                                   const std::string &moduleName,
-                                                                  const std::string &hostBundleName,
+                                                                  const int32_t hostPid,
                                                                   int32_t &recordNum)
 {
     CHECK_POINTER_AND_RETURN(uiExtensionAbilityRecordMgr_, ERR_NULL_OBJECT);
     return uiExtensionAbilityRecordMgr_->QueryPreLoadUIExtensionRecord(
-        element, moduleName, hostBundleName, recordNum);
+        element, moduleName, hostPid, recordNum);
 }
 
 std::shared_ptr<AbilityRecord> AbilityConnectManager::GetUIExtensionBySessionFromServiceMap(
diff --git a/services/abilitymgr/src/ability_manager_client.cpp b/services/abilitymgr/src/ability_manager_client.cpp
index eccba61611..25e9c68246 100644
--- a/services/abilitymgr/src/ability_manager_client.cpp
+++ b/services/abilitymgr/src/ability_manager_client.cpp
@@ -2285,7 +2285,7 @@ ErrCode AbilityManagerClient::UnregisterHiddenStartObserver(const sptr<IHiddenSt
 
 ErrCode AbilityManagerClient::QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                             const std::string &moduleName,
-                                                            const std::string &hostBundleName,
+                                                            const int32_t hostPid,
                                                             int32_t &recordNum,
                                                             int32_t userId)
 {
@@ -2293,7 +2293,7 @@ ErrCode AbilityManagerClient::QueryPreLoadUIExtensionRecord(const AppExecFwk::El
     auto abms = GetAbilityManager();
     CHECK_POINTER_RETURN_NOT_CONNECTED(abms);
     return abms->QueryPreLoadUIExtensionRecord(
-        element, moduleName, hostBundleName, recordNum, userId);
+        element, moduleName, hostPid, recordNum, userId);
 }
 
 ErrCode AbilityManagerClient::RevokeDelegator(sptr<IRemoteObject> token)
diff --git a/services/abilitymgr/src/ability_manager_proxy.cpp b/services/abilitymgr/src/ability_manager_proxy.cpp
index 600ce72a0d..46991f6b8e 100644
--- a/services/abilitymgr/src/ability_manager_proxy.cpp
+++ b/services/abilitymgr/src/ability_manager_proxy.cpp
@@ -6710,7 +6710,7 @@ int32_t AbilityManagerProxy::UnregisterHiddenStartObserver(const sptr<IHiddenSta
 
 int32_t AbilityManagerProxy::QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                            const std::string &moduleName,
-                                                           const std::string &hostBundleName,
+                                                           const int32_t hostPid,
                                                            int32_t &recordNum,
                                                            int32_t userId)
 {
@@ -6733,8 +6733,8 @@ int32_t AbilityManagerProxy::QueryPreLoadUIExtensionRecord(const AppExecFwk::Ele
         return ERR_INVALID_VALUE;
     }
 
-    if (!data.WriteString(hostBundleName)) {
-        TAG_LOGE(AAFwkTag::UI_EXT, "write hostBundleName fail");
+    if (!data.WriteInt32(hostPid)) {
+        TAG_LOGE(AAFwkTag::UI_EXT, "write hostPid fail");
         return INNER_ERR;
     }
 
diff --git a/services/abilitymgr/src/ability_manager_service.cpp b/services/abilitymgr/src/ability_manager_service.cpp
index 0342007eb9..260a8cc6ec 100644
--- a/services/abilitymgr/src/ability_manager_service.cpp
+++ b/services/abilitymgr/src/ability_manager_service.cpp
@@ -3693,7 +3693,7 @@ int AbilityManagerService::PreloadUIExtensionAbilityInner(const Want &want, std:
 }
 
 int AbilityManagerService::UnloadUIExtensionAbility(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord,
-    std::string &hostBundleName)
+    pid_t &hostPid)
 {
     TAG_LOGI(AAFwkTag::ABILITYMGR, "call");
     CHECK_POINTER_AND_RETURN(abilityRecord, ERR_INVALID_VALUE);
@@ -3702,7 +3702,7 @@ int AbilityManagerService::UnloadUIExtensionAbility(const std::shared_ptr<AAFwk:
         TAG_LOGE(AAFwkTag::ABILITYMGR, "connectManager null");
         return ERR_INVALID_VALUE;
     }
-    return connectManager->UnloadUIExtensionAbility(abilityRecord, hostBundleName);
+    return connectManager->UnloadUIExtensionAbility(abilityRecord, hostPid);
 }
 
 int AbilityManagerService::RequestModalUIExtension(const Want &want)
@@ -15258,7 +15258,7 @@ int32_t AbilityManagerService::UnregisterHiddenStartObserver(const sptr<IHiddenS
 
 int32_t AbilityManagerService::QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                              const std::string &moduleName,
-                                                             const std::string &hostBundleName,
+                                                             const int32_t hostPid,
                                                              int32_t &recordNum,
                                                              int32_t userId)
 {
@@ -15277,7 +15277,7 @@ int32_t AbilityManagerService::QueryPreLoadUIExtensionRecord(const AppExecFwk::E
       return ERR_INVALID_VALUE;
   }
   return connectManager->QueryPreLoadUIExtensionRecordInner(
-      element, moduleName, hostBundleName, recordNum);
+      element, moduleName, hostPid, recordNum);
 }
 
 int32_t AbilityManagerService::RevokeDelegator(sptr<IRemoteObject> token)
diff --git a/services/abilitymgr/src/ability_manager_stub.cpp b/services/abilitymgr/src/ability_manager_stub.cpp
index 1c564c78f4..5c4f8a5d86 100644
--- a/services/abilitymgr/src/ability_manager_stub.cpp
+++ b/services/abilitymgr/src/ability_manager_stub.cpp
@@ -4792,12 +4792,12 @@ int32_t AbilityManagerStub::QueryPreLoadUIExtensionRecordInner(MessageParcel &da
         return ERR_INVALID_VALUE;
     }
     std::string moduleName = data.ReadString();
-    std::string hostBundleName = data.ReadString();
+    int32_t hostPid = data.ReadInt32();
     int32_t userId = data.ReadInt32();
 
     int32_t recordNum;
     int32_t result = QueryPreLoadUIExtensionRecord(
-        *element, moduleName, hostBundleName, recordNum, userId);
+        *element, moduleName, hostPid, recordNum, userId);
     if (!reply.WriteInt32(recordNum)) {
         TAG_LOGE(AAFwkTag::UI_EXT, "reply write recordNum fail");
         return INNER_ERR;
diff --git a/services/abilitymgr/src/extension_record/extension_record.cpp b/services/abilitymgr/src/extension_record/extension_record.cpp
index 4aab5b7bc2..5f5968875b 100644
--- a/services/abilitymgr/src/extension_record/extension_record.cpp
+++ b/services/abilitymgr/src/extension_record/extension_record.cpp
@@ -62,7 +62,7 @@ void ExtensionRecord::UnloadUIExtensionAbility()
         TAG_LOGE(AAFwkTag::ABILITYMGR, "unRegisterObserver error");
     }
     auto result = DelayedSingleton<AAFwk::AbilityManagerService>::GetInstance()->UnloadUIExtensionAbility(
-        abilityRecord_, hostBundleName_);
+        abilityRecord_, hostPid_);
     if (result != ERR_OK) {
         TAG_LOGE(AAFwkTag::ABILITYMGR, "UIExtension unload error");
     }
diff --git a/services/abilitymgr/src/extension_record/extension_record_manager.cpp b/services/abilitymgr/src/extension_record/extension_record_manager.cpp
index a717f1fbeb..6fa79d51f2 100644
--- a/services/abilitymgr/src/extension_record/extension_record_manager.cpp
+++ b/services/abilitymgr/src/extension_record/extension_record_manager.cpp
@@ -162,12 +162,13 @@ int32_t ExtensionRecordManager::GetOrCreateExtensionRecord(const AAFwk::AbilityR
     }
     std::shared_ptr<ExtensionRecord> extensionRecord = nullptr;
     TAG_LOGD(AAFwkTag::ABILITYMGR, "Check Preload Extension Record.");
-    auto result = IsPreloadExtensionRecord(abilityRequest, hostBundleName, extensionRecord, isLoaded);
+    auto hostPid = IPCSkeleton::GetCallingPid();
+    auto result = IsPreloadExtensionRecord(abilityRequest, hostPid, extensionRecord, isLoaded);
     if (result) {
         std::string abilityName = abilityRequest.want.GetElement().GetAbilityName();
         std::string bundleName = abilityRequest.want.GetElement().GetBundleName();
         std::string moduleName = abilityRequest.want.GetElement().GetModuleName();
-        auto extensionRecordMapKey = std::make_tuple(abilityName, bundleName, moduleName, hostBundleName);
+        auto extensionRecordMapKey = std::make_tuple(abilityName, bundleName, moduleName, hostPid);
         RemovePreloadUIExtensionRecord(extensionRecordMapKey);
     } else {
         int32_t ret = GetOrCreateExtensionRecordInner(abilityRequest, hostBundleName, extensionRecord, isLoaded);
@@ -288,7 +289,7 @@ int32_t ExtensionRecordManager::UpdateProcessName(const AAFwk::AbilityRequest &a
     return ERR_OK;
 }
 
-int32_t ExtensionRecordManager::GetHostBundleNameForExtensionId(int32_t extensionRecordId, std::string &hostBundleName)
+int32_t ExtensionRecordManager::GetHostPidForExtensionId(int32_t extensionRecordId, pid_t &hostPid)
 {
     TAG_LOGD(AAFwkTag::ABILITYMGR, "call");
     std::lock_guard<std::mutex> lock(mutex_);
@@ -296,7 +297,7 @@ int32_t ExtensionRecordManager::GetHostBundleNameForExtensionId(int32_t extensio
     if (extensionRecords_.find(extensionRecordId) != extensionRecords_.end()) {
         extensionRecord = extensionRecords_[extensionRecordId];
         CHECK_POINTER_AND_RETURN(extensionRecord, ERR_INVALID_VALUE);
-        hostBundleName = extensionRecord->hostBundleName_;
+        hostPid = extensionRecord->hostPid_;
         return ERR_OK;
     }
     return ERR_INVALID_VALUE;
@@ -312,12 +313,12 @@ int32_t ExtensionRecordManager::AddPreloadUIExtensionRecord(const std::shared_pt
     if (extensionRecords_.find(extensionRecordId) != extensionRecords_.end()) {
         extensionRecord = extensionRecords_[extensionRecordId];
         CHECK_POINTER_AND_RETURN(extensionRecord, ERR_INVALID_VALUE);
-        auto hostBundleName = extensionRecord->hostBundleName_;
+        auto hostPid = extensionRecord->hostPid_;
         auto preLoadUIExtensionInfo = std::make_tuple(abilityRecord->GetWant().GetElement().GetAbilityName(),
             abilityRecord->GetWant().GetElement().GetBundleName(),
-            abilityRecord->GetWant().GetElement().GetModuleName(), hostBundleName);
-        TAG_LOGD(AAFwkTag::ABILITYMGR, "hostBundleName: %{public}s, elementName:%{public}s/%{public}s",
-            hostBundleName.c_str(), abilityRecord->GetWant().GetElement().GetBundleName().c_str(),
+            abilityRecord->GetWant().GetElement().GetModuleName(), hostPid);
+        TAG_LOGD(AAFwkTag::ABILITYMGR, "hostPid: %{public}d, elementName:%{public}s/%{public}s",
+            hostPid, abilityRecord->GetWant().GetElement().GetBundleName().c_str(),
             abilityRecord->GetWant().GetElement().GetAbilityName().c_str());
         std::lock_guard<std::mutex> lock(preloadUIExtensionMapMutex_);
         preloadUIExtensionMap_[preLoadUIExtensionInfo].push_back(extensionRecord);
@@ -339,15 +340,15 @@ void ExtensionRecordManager::RemoveAllPreloadUIExtensionRecord(PreLoadUIExtensio
 }
 
 bool ExtensionRecordManager::IsPreloadExtensionRecord(const AAFwk::AbilityRequest &abilityRequest,
-    const std::string &hostBundleName, std::shared_ptr<ExtensionRecord> &extensionRecord, bool &isLoaded)
+    const pid_t &hostPid, std::shared_ptr<ExtensionRecord> &extensionRecord, bool &isLoaded)
 {
     TAG_LOGD(AAFwkTag::ABILITYMGR, "call.");
     std::string abilityName = abilityRequest.want.GetElement().GetAbilityName();
     std::string bundleName = abilityRequest.want.GetElement().GetBundleName();
     std::string moduleName = abilityRequest.want.GetElement().GetModuleName();
-    auto extensionRecordMapKey = std::make_tuple(abilityName, bundleName, moduleName, hostBundleName);
-    TAG_LOGD(AAFwkTag::ABILITYMGR, "hostBundleName: %{public}s, bundleName: %{public}s",
-        hostBundleName.c_str(), bundleName.c_str());
+    auto extensionRecordMapKey = std::make_tuple(abilityName, bundleName, moduleName, hostPid);
+    TAG_LOGD(AAFwkTag::ABILITYMGR, "hostBundleName: %{public}d, bundleName: %{public}s",
+        hostPid, bundleName.c_str());
     std::lock_guard<std::mutex> lock(preloadUIExtensionMapMutex_);
     auto item = preloadUIExtensionMap_.find(extensionRecordMapKey);
     if (item != preloadUIExtensionMap_.end()) {
@@ -369,7 +370,7 @@ bool ExtensionRecordManager::IsPreloadExtensionRecord(const AAFwk::AbilityReques
 }
 
 bool ExtensionRecordManager::RemovePreloadUIExtensionRecordById(
-    const std::tuple<std::string, std::string, std::string, std::string> &extensionRecordMapKey,
+    const std::tuple<std::string, std::string, std::string, pid_t> &extensionRecordMapKey,
     int32_t extensionRecordId)
 {
     TAG_LOGD(AAFwkTag::ABILITYMGR, "call.");
@@ -400,7 +401,7 @@ bool ExtensionRecordManager::RemovePreloadUIExtensionRecordById(
 }
 
 bool ExtensionRecordManager::RemovePreloadUIExtensionRecord(
-    const std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey)
+    const std::tuple<std::string, std::string, std::string, pid_t> extensionRecordMapKey)
 {
     TAG_LOGD(AAFwkTag::ABILITYMGR, "call.");
     std::lock_guard<std::mutex> lock(preloadUIExtensionMapMutex_);
@@ -810,23 +811,22 @@ bool ExtensionRecordManager::IsFocused(
 
 int32_t ExtensionRecordManager::QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                               const std::string &moduleName,
-                                                              const std::string &hostBundleName,
+                                                              const int32_t hostPid,
                                                               int32_t &recordNum)
 {
     std::string abilityName = element.GetAbilityName();
     std::string bundleName = element.GetBundleName();
     TAG_LOGD(AAFwkTag::UI_EXT,
-             "hostBundleName: %{public}s, bundleName: %{public}s, moduleName: %{public}s, abilityName: %{public}s",
-             hostBundleName.c_str(), bundleName.c_str(), moduleName.c_str(), abilityName.c_str());
-    if (element.GetAbilityName().empty() || element.GetBundleName().empty() || moduleName.empty() ||
-        hostBundleName.empty()) {
+             "hostPid: %{public}d, bundleName: %{public}s, moduleName: %{public}s, abilityName: %{public}s",
+             hostPid, bundleName.c_str(), moduleName.c_str(), abilityName.c_str());
+    if (element.GetAbilityName().empty() || element.GetBundleName().empty() || moduleName.empty()) {
         recordNum = 0;
-        TAG_LOGD(AAFwkTag::UI_EXT, "element or hostBundleName is null.");
+        TAG_LOGD(AAFwkTag::UI_EXT, "element is null.");
         return ERR_INVALID_VALUE;
     }
 
     auto extensionRecordMapKey =
-        std::make_tuple(abilityName, bundleName, moduleName, hostBundleName);
+        std::make_tuple(abilityName, bundleName, moduleName, hostPid);
     std::lock_guard<std::mutex> lock(preloadUIExtensionMapMutex_);
     auto item = preloadUIExtensionMap_.find(extensionRecordMapKey);
     if (item != preloadUIExtensionMap_.end()) {
diff --git a/test/fuzztest/extensionrecordmanager_fuzzer/extensionrecordmanager_fuzzer.cpp b/test/fuzztest/extensionrecordmanager_fuzzer/extensionrecordmanager_fuzzer.cpp
index caf2fc2e4e..fabb48f5eb 100644
--- a/test/fuzztest/extensionrecordmanager_fuzzer/extensionrecordmanager_fuzzer.cpp
+++ b/test/fuzztest/extensionrecordmanager_fuzzer/extensionrecordmanager_fuzzer.cpp
@@ -65,7 +65,7 @@ bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
     sptr<IRemoteObject> focusedCallerToken;
     sptr<IRemoteObject> token;
     sptr<IRemoteObject> focusToken;
-    std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey;
+    std::tuple<std::string, std::string, std::string, int32_t> extensionRecordMapKey;
 
     FuzzedDataProvider fdp(data, size);
     userId = fdp.ConsumeIntegral<int32_t>();
@@ -95,10 +95,10 @@ bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
     extensionRecordManager->GetAbilityRecordBySessionInfo(sessionInfo);
     extensionRecordManager->IsHostSpecifiedProcessValid(abilityRequest, record, process);
     extensionRecordManager->UpdateProcessName(abilityRequest, record);
-    extensionRecordManager->GetHostBundleNameForExtensionId(extensionRecordId, hostBundleName);
+    extensionRecordManager->GetHostPidForExtensionId(extensionRecordId, hostPid);
     extensionRecordManager->AddPreloadUIExtensionRecord(abilityRecord);
     extensionRecordManager->RemoveAllPreloadUIExtensionRecord(preLoadUIExtensionInfo);
-    extensionRecordManager->IsPreloadExtensionRecord(abilityRequest, hostBundleName, extensionRecord, isLoaded);
+    extensionRecordManager->IsPreloadExtensionRecord(abilityRequest, hostPid, extensionRecord, isLoaded);
     extensionRecordManager->RemovePreloadUIExtensionRecordById(extensionRecordMapKey, extensionRecordId);
     extensionRecordManager->RemovePreloadUIExtensionRecord(extensionRecordMapKey);
     extensionRecordManager->GetOrCreateExtensionRecordInner(abilityRequest, hostBundleName, extensionRecord, isLoaded);
@@ -117,7 +117,7 @@ bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
     extensionRecordManager->TerminateTimeout(extensionRecordId);
     extensionRecordManager->GetCallerTokenList(abilityRecord, callerList);
     extensionRecordManager->IsFocused(extensionRecordId, token, focusToken);
-    extensionRecordManager->QueryPreLoadUIExtensionRecord(element, moduleName, hostBundleName, recordNum);
+    extensionRecordManager->QueryPreLoadUIExtensionRecord(element, moduleName, hostPid, recordNum);
     return true;
 }
 } // namespace OHOS
diff --git a/test/fuzztest/extensionrecordmanagera_fuzzer/extensionrecordmanagera_fuzzer.cpp b/test/fuzztest/extensionrecordmanagera_fuzzer/extensionrecordmanagera_fuzzer.cpp
index 3f3ba33cf8..13b27c9875 100755
--- a/test/fuzztest/extensionrecordmanagera_fuzzer/extensionrecordmanagera_fuzzer.cpp
+++ b/test/fuzztest/extensionrecordmanagera_fuzzer/extensionrecordmanagera_fuzzer.cpp
@@ -122,18 +122,18 @@ void FuzztestExtensionRecordManagerFunc2(std::shared_ptr<ExtensionRecordManager>
     mgr->UpdateProcessName(abilityRequest, record);
     record->processMode_ = PROCESS_MODE_HOST_SPECIFIED;
     mgr->UpdateProcessName(abilityRequest, record);
-    std::string bundleName = "bundleName";
-    mgr->GetHostBundleNameForExtensionId(1, bundleName); // 1 means id
+    int32_t hostPid = 0;
+    mgr->GetHostPidForExtensionId(1, hostPid); // 1 means id
     mgr->AddExtensionRecord(1, record); // 1 means id
-    mgr->GetHostBundleNameForExtensionId(1, bundleName); // 1 means id, exist.
-    mgr->GetHostBundleNameForExtensionId(int32Param, bundleName); // 1 means id, exist.
+    mgr->GetHostPidForExtensionId(1, hostPid); // 1 means id, exist.
+    mgr->GetHostPidForExtensionId(int32Param, hostPid); // 1 means id, exist.
     abilityRecord->SetUIExtensionAbilityId(-1);
     mgr->AddExtensionRecord(1, record); // 1 means id
     abilityRecord->SetUIExtensionAbilityId(1);
     mgr->AddPreloadUIExtensionRecord(abilityRecord);
     ExtensionRecordManager::PreLoadUIExtensionMapKey key;
     mgr->RemoveAllPreloadUIExtensionRecord(key); // called
-    mgr->IsPreloadExtensionRecord(abilityRequest, stringParam, record, boolParam);  // called
+    mgr->IsPreloadExtensionRecord(abilityRequest, hostPid, record, boolParam);  // called
     mgr->RemovePreloadUIExtensionRecordById(key, int32Param);  // called
     mgr->RemovePreloadUIExtensionRecord(key);  // called
     mgr->GetOrCreateExtensionRecordInner(abilityRequest, stringParam, record, boolParam);  // called
diff --git a/test/moduletest/ability_manager_client_test/ability_manager_client_test.cpp b/test/moduletest/ability_manager_client_test/ability_manager_client_test.cpp
index fb2e74a83b..0e2d8a7039 100644
--- a/test/moduletest/ability_manager_client_test/ability_manager_client_test.cpp
+++ b/test/moduletest/ability_manager_client_test/ability_manager_client_test.cpp
@@ -545,11 +545,11 @@ HWTEST_F(AbilityManagerClientTest, QueryPreLoadUIExtensionRecord_0100, TestSize.
 {
     OHOS::AppExecFwk::ElementName elementName;
     std::string moduleName {};
-    std::string hostBundleName {};
+    int32_t hostPid = 1;
     int32_t recordNum = 1;
     int32_t userId = 1;
     auto result = AbilityManagerClient::GetInstance()->QueryPreLoadUIExtensionRecord(elementName,
-        moduleName, hostBundleName, recordNum, userId);
+        moduleName, hostPid, recordNum, userId);
     EXPECT_EQ(result, ERR_OK);
 }
 
diff --git a/test/unittest/ability_connect_manager_first_test/ability_connect_manager_first_test.cpp b/test/unittest/ability_connect_manager_first_test/ability_connect_manager_first_test.cpp
index a1c0408cba..8debb664a2 100644
--- a/test/unittest/ability_connect_manager_first_test/ability_connect_manager_first_test.cpp
+++ b/test/unittest/ability_connect_manager_first_test/ability_connect_manager_first_test.cpp
@@ -885,9 +885,9 @@ HWTEST_F(AbilityConnectManagerTest, UnloadUIExtensionAbility_001, TestSize.Level
     abilityRecord->abilityInfo_.type = AbilityType::PAGE;
     abilityRecord->SetAbilityState(AbilityState::INACTIVE);
     abilityRecord->connRecordList_.push_back(connection);
-    std::string hostBundName = "bundleName";
+    int32_t hostPid = 10;
 
-    int result = connectManager->UnloadUIExtensionAbility(abilityRecord, hostBundName);
+    int result = connectManager->UnloadUIExtensionAbility(abilityRecord, hostPid);
     EXPECT_NE(result, ERR_OK);
     TAG_LOGI(AAFwkTag::TEST, "UnloadUIExtensionAbility_001 end");
 }
diff --git a/test/unittest/ability_connect_manager_fourth_test/ability_connect_manager_fourth_test.cpp b/test/unittest/ability_connect_manager_fourth_test/ability_connect_manager_fourth_test.cpp
index 5688697591..1bf083c072 100644
--- a/test/unittest/ability_connect_manager_fourth_test/ability_connect_manager_fourth_test.cpp
+++ b/test/unittest/ability_connect_manager_fourth_test/ability_connect_manager_fourth_test.cpp
@@ -943,16 +943,16 @@ HWTEST_F(AbilityConnectManagerFourthTest, QueryPreLoadUIExtensionRecordInner_001
 
     AppExecFwk::ElementName element("deviceId", "bundleName", "abilityName", "moduleName");
     std::string moduleName = "testModule";
-    std::string hostBundleName = "testHostBundle";
+    int32_t hostPid = 0;
     int32_t recordNum = 0;
 
     int32_t result =
-        connectManager->QueryPreLoadUIExtensionRecordInner(element, moduleName, hostBundleName, recordNum);
+        connectManager->QueryPreLoadUIExtensionRecordInner(element, moduleName, hostPid, recordNum);
     EXPECT_EQ(result, ERR_OK);
 
     connectManager->uiExtensionAbilityRecordMgr_ = nullptr;
     result =
-        connectManager->QueryPreLoadUIExtensionRecordInner(element, moduleName, hostBundleName, recordNum);
+        connectManager->QueryPreLoadUIExtensionRecordInner(element, moduleName, hostPid, recordNum);
     EXPECT_EQ(result, ERR_NULL_OBJECT);
     TAG_LOGI(AAFwkTag::TEST, "QueryPreLoadUIExtensionRecordInner_001 end");
 }
@@ -969,11 +969,11 @@ HWTEST_F(AbilityConnectManagerFourthTest, QueryPreLoadUIExtensionRecordInner_002
 
     AppExecFwk::ElementName element("deviceId", "bundleName", "abilityName", "moduleName");
     std::string moduleName = "testModule";
-    std::string hostBundleName = "testHostBundle";
+    int32_t hostPid = 0;
     int32_t recordNum = 0;
 
     connectManager->uiExtensionAbilityRecordMgr_ = nullptr;
-    int result = connectManager->QueryPreLoadUIExtensionRecordInner(element, moduleName, hostBundleName, recordNum);
+    int result = connectManager->QueryPreLoadUIExtensionRecordInner(element, moduleName, hostPid, recordNum);
     EXPECT_EQ(result, ERR_NULL_OBJECT);
     TAG_LOGI(AAFwkTag::TEST, "QueryPreLoadUIExtensionRecordInner_002 end");
 }
diff --git a/test/unittest/ability_connect_manager_test/ability_connect_manager_test.cpp b/test/unittest/ability_connect_manager_test/ability_connect_manager_test.cpp
index a73cfc87f0..c63fbdeacc 100644
--- a/test/unittest/ability_connect_manager_test/ability_connect_manager_test.cpp
+++ b/test/unittest/ability_connect_manager_test/ability_connect_manager_test.cpp
@@ -3457,8 +3457,8 @@ HWTEST_F(AbilityConnectManagerTest, UnloadUIExtensionAbility_0100, TestSize.Leve
     AppExecFwk::ElementName providerElement("0", "com.ohos.uiextensionprovider", "UIExtensionProvider", "entry");
     abilityRequest.want.SetElement(providerElement);
     std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
-    std::string hostBundleName = "com.ohos.uiextensionuser";
-    auto ret = connectManager->UnloadUIExtensionAbility(abilityRecord, hostBundleName);
+    int32_t hostPid = 0;
+    auto ret = connectManager->UnloadUIExtensionAbility(abilityRecord, hostPid);
     EXPECT_EQ(ret, ERR_CONNECT_MANAGER_NULL_ABILITY_RECORD);
 }
 
diff --git a/test/unittest/ability_manager_proxy_sixth_test/ability_manager_proxy_sixth_test.cpp b/test/unittest/ability_manager_proxy_sixth_test/ability_manager_proxy_sixth_test.cpp
index 6465a49151..8369e59d39 100644
--- a/test/unittest/ability_manager_proxy_sixth_test/ability_manager_proxy_sixth_test.cpp
+++ b/test/unittest/ability_manager_proxy_sixth_test/ability_manager_proxy_sixth_test.cpp
@@ -690,19 +690,19 @@ HWTEST_F(AbilityManagerProxySixthTest, AbilityManagerProxy_QueryPreLoadUIExtensi
 {
     AppExecFwk::ElementName element;
     std::string moduleName;
-    std::string hostBundleName;
+    int32_t hostPid = 0;
     int32_t recordNum = 0;
     int32_t userId = 100;
     EXPECT_CALL(*mock_, SendRequest(_, _, _, _))
         .Times(1)
         .WillOnce(Return(-1));
-    auto res = proxy_->QueryPreLoadUIExtensionRecord(element, moduleName, hostBundleName, recordNum, userId);
+    auto res = proxy_->QueryPreLoadUIExtensionRecord(element, moduleName, hostPid, recordNum, userId);
     EXPECT_EQ(res, -1);
 
     EXPECT_CALL(*mock_, SendRequest(_, _, _, _))
         .Times(1)
         .WillOnce(Invoke(mock_.GetRefPtr(), &AbilityManagerStubMock::InvokeSendRequest));
-    res = proxy_->QueryPreLoadUIExtensionRecord(element, moduleName, hostBundleName, recordNum, userId);
+    res = proxy_->QueryPreLoadUIExtensionRecord(element, moduleName, hostPid, recordNum, userId);
     EXPECT_EQ(static_cast<uint32_t>(AbilityManagerInterfaceCode::QUERY_PRELOAD_UIEXTENSION_RECORD), mock_->code_);
     EXPECT_EQ(res, NO_ERROR);
 }
diff --git a/test/unittest/ability_manager_service_third_test/ability_manager_service_third_test.cpp b/test/unittest/ability_manager_service_third_test/ability_manager_service_third_test.cpp
index a72328eb02..ebb03659f2 100644
--- a/test/unittest/ability_manager_service_third_test/ability_manager_service_third_test.cpp
+++ b/test/unittest/ability_manager_service_third_test/ability_manager_service_third_test.cpp
@@ -1097,8 +1097,8 @@ HWTEST_F(AbilityManagerServiceThirdTest, UnloadUIExtensionAbility_001, TestSize.
     abilityRequest.want.SetElement(providerElement);
     abilityRequest.abilityInfo.type = AbilityType::EXTENSION;
     std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
-    std::string hostBundleName = "com.ohos.uiextensionuser";
-    auto result = abilityMs->UnloadUIExtensionAbility(abilityRecord, hostBundleName);
+    int32_t hostPid = 0;
+    auto result = abilityMs->UnloadUIExtensionAbility(abilityRecord, hostPid);
     EXPECT_EQ(result, ERR_INVALID_VALUE);
     TAG_LOGI(AAFwkTag::TEST, "finish.");
 }
diff --git a/test/unittest/ability_manager_service_thirteenth_test/mock/src/mock_ability_connect_manager.cpp b/test/unittest/ability_manager_service_thirteenth_test/mock/src/mock_ability_connect_manager.cpp
index cd0fcfd419..33abd8eff5 100644
--- a/test/unittest/ability_manager_service_thirteenth_test/mock/src/mock_ability_connect_manager.cpp
+++ b/test/unittest/ability_manager_service_thirteenth_test/mock/src/mock_ability_connect_manager.cpp
@@ -132,7 +132,7 @@ int AbilityConnectManager::PreloadUIExtensionAbilityInner(const AbilityRequest &
 }
 
 int AbilityConnectManager::UnloadUIExtensionAbility(const std::shared_ptr<AAFwk::AbilityRecord> &abilityRecord,
-    std::string &hostBundleName)
+    int32_t &hostPid)
 {
     return ERR_OK;
 }
@@ -769,7 +769,7 @@ int32_t AbilityConnectManager::UpdateKeepAliveEnableState(const std::string &bun
 
 int32_t AbilityConnectManager::QueryPreLoadUIExtensionRecordInner(const AppExecFwk::ElementName &element,
                                                                   const std::string &moduleName,
-                                                                  const std::string &hostBundleName,
+                                                                  const int32_t hostPid,
                                                                   int32_t &recordNum)
 {
     return ERR_OK;
diff --git a/test/unittest/frameworks_kits_ability_ability_runtime_test/mock_ability_manager_client.cpp b/test/unittest/frameworks_kits_ability_ability_runtime_test/mock_ability_manager_client.cpp
index a45e161b77..dc6dd009ce 100644
--- a/test/unittest/frameworks_kits_ability_ability_runtime_test/mock_ability_manager_client.cpp
+++ b/test/unittest/frameworks_kits_ability_ability_runtime_test/mock_ability_manager_client.cpp
@@ -1080,7 +1080,7 @@ ErrCode AbilityManagerClient::UnregisterHiddenStartObserver(const sptr<IHiddenSt
 
 ErrCode AbilityManagerClient::QueryPreLoadUIExtensionRecord(const AppExecFwk::ElementName &element,
                                                             const std::string &moduleName,
-                                                            const std::string &hostBundleName,
+                                                            const int32_t hostPid,
                                                             int32_t &recordNum,
                                                             int32_t userId)
 {
diff --git a/test/unittest/ui_extension/extension_record_manager_second_test/extension_record_manager_second_test.cpp b/test/unittest/ui_extension/extension_record_manager_second_test/extension_record_manager_second_test.cpp
index 3c46914734..3333032093 100644
--- a/test/unittest/ui_extension/extension_record_manager_second_test/extension_record_manager_second_test.cpp
+++ b/test/unittest/ui_extension/extension_record_manager_second_test/extension_record_manager_second_test.cpp
@@ -219,7 +219,7 @@ HWTEST_F(ExtensionRecordManagerSecondTest, RemovePreloadUIExtensionRecordById_01
 {
     TAG_LOGI(AAFwkTag::TEST, "begin.");
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
-    std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey;
+    std::tuple<std::string, std::string, std::string, int32_t> extensionRecordMapKey;
     int32_t extensionRecordId = 0;
     EXPECT_FALSE(extRecordMgr->RemovePreloadUIExtensionRecordById(extensionRecordMapKey, extensionRecordId));
 
@@ -257,9 +257,9 @@ HWTEST_F(ExtensionRecordManagerSecondTest, GetHostBundleNameForExtensionId_0100,
 {
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
     extRecordMgr->extensionRecords_.clear();
-    std::string hostBundleName = "";
+    int32_t hostPid = 0;
 
-    auto ret = extRecordMgr->GetHostBundleNameForExtensionId(1, hostBundleName);
+    auto ret = extRecordMgr->GetHostPidForExtensionId(1, hostPid);
 
     EXPECT_EQ(ret, ERR_INVALID_VALUE);
 }
@@ -273,7 +273,7 @@ HWTEST_F(ExtensionRecordManagerSecondTest, GetHostBundleNameForExtensionId_0100,
 HWTEST_F(ExtensionRecordManagerSecondTest, RemoveAllPreloadUIExtensionRecord_0100, TestSize.Level1)
 {
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo("1", "2", "3", "4");
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo("1", "2", "3", 4);
     extRecordMgr->preloadUIExtensionMap_ = {
         {preLoadUIExtensionInfo, {}}
     };
@@ -292,8 +292,8 @@ HWTEST_F(ExtensionRecordManagerSecondTest, RemoveAllPreloadUIExtensionRecord_010
 HWTEST_F(ExtensionRecordManagerSecondTest, RemoveAllPreloadUIExtensionRecord_0200, TestSize.Level1)
 {
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", "4");
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", "8");
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", 4);
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", 8);
     extRecordMgr->preloadUIExtensionMap_ = {
         {preLoadUIExtensionInfo1, {}}
     };
@@ -312,12 +312,12 @@ HWTEST_F(ExtensionRecordManagerSecondTest, RemoveAllPreloadUIExtensionRecord_020
 HWTEST_F(ExtensionRecordManagerSecondTest, RemovePreloadUIExtensionRecordById_0300, TestSize.Level1)
 {
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
-    std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey = {
-        "1", "2", "3", "4"
+    std::tuple<std::string, std::string, std::string, int32_t> extensionRecordMapKey = {
+        "1", "2", "3", 4
     };
     int32_t extensionRecordId = 1;
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", "4");
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", "8");
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", 4);
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", 8);
     AAFwk::AbilityRequest abilityRequest;
     abilityRequest.appInfo.bundleName = "com.example.unittest";
     abilityRequest.abilityInfo.name = "MainAbility";
@@ -349,13 +349,13 @@ HWTEST_F(ExtensionRecordManagerSecondTest, RemovePreloadUIExtensionRecordById_03
 HWTEST_F(ExtensionRecordManagerSecondTest, RemovePreloadUIExtensionRecordById_0400, TestSize.Level1)
 {
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
-    std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey = {
-        "1", "2", "3", "4"
+    std::tuple<std::string, std::string, std::string, int32_t> extensionRecordMapKey = {
+        "1", "2", "3", 4
     };
     int32_t extensionRecordId = 1;
     int32_t extensionRecordId2 = 2;
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", "4");
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", "8");
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", 4);
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", 8);
     AAFwk::AbilityRequest abilityRequest;
     abilityRequest.appInfo.bundleName = "com.example.unittest";
     abilityRequest.abilityInfo.name = "MainAbility";
@@ -389,14 +389,14 @@ HWTEST_F(ExtensionRecordManagerSecondTest, RemovePreloadUIExtensionRecordById_05
 {
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
 
-    std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey = {
-        "1", "2", "3", "4"
+    std::tuple<std::string, std::string, std::string, int32_t> extensionRecordMapKey = {
+        "1", "2", "3", 4
     };
     int32_t extensionRecordId = 1;
     int32_t extensionRecordId2 = 2;
     int32_t extensionRecordId3 = 3;
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", "4");
-    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", "8");
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo1("1", "2", "3", 4);
+    ExtensionRecordManager::PreLoadUIExtensionMapKey preLoadUIExtensionInfo2("5", "6", "7", 8);
     AAFwk::AbilityRequest abilityRequest;
     abilityRequest.appInfo.bundleName = "com.example.unittest";
     abilityRequest.abilityInfo.name = "MainAbility";
@@ -430,8 +430,8 @@ HWTEST_F(ExtensionRecordManagerSecondTest, RemovePreloadUIExtensionRecord_0200,
 {
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
 
-    std::tuple<std::string, std::string, std::string, std::string> extensionRecordMapKey = {
-        "1", "2", "3", "4"
+    std::tuple<std::string, std::string, std::string, int32_t> extensionRecordMapKey = {
+        "1", "2", "3", 4
     };
     extRecordMgr->preloadUIExtensionMap_.clear();
 
@@ -595,11 +595,11 @@ HWTEST_F(ExtensionRecordManagerSecondTest, QueryPreLoadUIExtensionRecord_0100, T
     element.SetAbilityName("");
     element.SetBundleName("HeavenlyMe");
     std::string moduleName = "HeavenlyMe";
-    std::string hostBundleName = "HeavenlyMe";
+    int32_t hostPid = 0;
     int32_t recordNum = 1;
 
     auto ret = extRecordMgr->QueryPreLoadUIExtensionRecord(
-        element, moduleName, hostBundleName, recordNum);
+        element, moduleName, hostPid, recordNum);
 
     EXPECT_EQ(ret, ERR_INVALID_VALUE);
 }
@@ -618,12 +618,12 @@ HWTEST_F(ExtensionRecordManagerSecondTest, QueryPreLoadUIExtensionRecord_0200, T
     element.SetAbilityName("HeavenlyMe");
     element.SetBundleName("HeavenlyMe");
     std::string moduleName = "HeavenlyMe";
-    std::string hostBundleName = "HeavenlyMe";
+    int32_t hostPid = 0;
     int32_t recordNum = 1;
     extRecordMgr->preloadUIExtensionMap_.clear();
 
     auto ret = extRecordMgr->QueryPreLoadUIExtensionRecord(
-        element, moduleName, hostBundleName, recordNum);
+        element, moduleName, hostPid, recordNum);
 
     EXPECT_EQ(recordNum, 0);
     EXPECT_EQ(ret, ERR_OK);
@@ -643,16 +643,16 @@ HWTEST_F(ExtensionRecordManagerSecondTest, QueryPreLoadUIExtensionRecord_0300, T
     element.SetAbilityName("HeavenlyMeAbility");
     element.SetBundleName("HeavenlyMeBundle");
     std::string moduleName = "HeavenlyMeMoudle";
-    std::string hostBundleName = "HeavenlyMeHostBundle";
+    int32_t hostPid = 0;
     int32_t recordNum = 1;
     ExtensionRecordManager::PreLoadUIExtensionMapKey extensionMapKey(
-        "HeavenlyMeAbility", "HeavenlyMeBundle", "HeavenlyMeMoudle", "HeavenlyMeHostBundle");
+        "HeavenlyMeAbility", "HeavenlyMeBundle", "HeavenlyMeMoudle", hostPid);
     extRecordMgr->preloadUIExtensionMap_ = {
         {extensionMapKey, {}}
     };
 
     auto ret = extRecordMgr->QueryPreLoadUIExtensionRecord(
-        element, moduleName, hostBundleName, recordNum);
+        element, moduleName, hostPid, recordNum);
 
     EXPECT_EQ(recordNum, 0);
     EXPECT_EQ(ret, ERR_OK);
@@ -672,10 +672,10 @@ HWTEST_F(ExtensionRecordManagerSecondTest, QueryPreLoadUIExtensionRecord_0400, T
     element.SetAbilityName("HeavenlyMeAbility");
     element.SetBundleName("HeavenlyMeBundle");
     std::string moduleName = "HeavenlyMeMoudle";
-    std::string hostBundleName = "HeavenlyMeHostBundle";
+    int32_t hostPid = 100;
     int32_t recordNum = 1;
     ExtensionRecordManager::PreLoadUIExtensionMapKey extensionMapKey(
-        "HeavenlyMeAbility", "HeavenlyMeBundle", "HeavenlyMeMoudle", "HeavenlyMeHostBundle");
+        "HeavenlyMeAbility", "HeavenlyMeBundle", "HeavenlyMeMoudle", hostPid);
     AAFwk::AbilityRequest abilityRequest;
     abilityRequest.appInfo.bundleName = "com.example.unittest";
     abilityRequest.abilityInfo.name = "MainAbility";
@@ -688,7 +688,7 @@ HWTEST_F(ExtensionRecordManagerSecondTest, QueryPreLoadUIExtensionRecord_0400, T
     };
 
     auto ret = extRecordMgr->QueryPreLoadUIExtensionRecord(
-        element, moduleName, hostBundleName, recordNum);
+        element, moduleName, hostPid, recordNum);
 
     EXPECT_EQ(recordNum, 1);
     EXPECT_EQ(ret, ERR_OK);
@@ -764,7 +764,7 @@ HWTEST_F(ExtensionRecordManagerSecondTest, GetHostBundleNameForExtensionId_0200,
 {
     TAG_LOGI(AAFwkTag::TEST, "begin.");
     int32_t extensionRecordId = 0;
-    std::string hostBundleName = "com.example.unittest";
+    int32_t hostPid = 0;
     std::string bundleName = "com.example.unittest";
 
     AAFwk::AbilityRequest abilityRequest;
@@ -775,11 +775,11 @@ HWTEST_F(ExtensionRecordManagerSecondTest, GetHostBundleNameForExtensionId_0200,
     std::shared_ptr<ExtensionRecord> extRecord = std::make_shared<ExtensionRecord>(abilityRecord);
     
     auto extRecordMgr = std::make_shared<ExtensionRecordManager>(0);
-    EXPECT_EQ(extRecordMgr->GetHostBundleNameForExtensionId(extensionRecordId, hostBundleName), ERR_INVALID_VALUE);
+    EXPECT_EQ(extRecordMgr->GetHostPidForExtensionId(extensionRecordId, hostPid), ERR_INVALID_VALUE);
     extRecordMgr->extensionRecords_[extensionRecordId] = nullptr;
-    EXPECT_EQ(extRecordMgr->GetHostBundleNameForExtensionId(extensionRecordId, hostBundleName), ERR_INVALID_VALUE);
+    EXPECT_EQ(extRecordMgr->GetHostPidForExtensionId(extensionRecordId, hostPid), ERR_INVALID_VALUE);
     extRecordMgr->extensionRecords_[extensionRecordId] = extRecord;
-    EXPECT_EQ(extRecordMgr->GetHostBundleNameForExtensionId(extensionRecordId, hostBundleName), ERR_OK);
+    EXPECT_EQ(extRecordMgr->GetHostPidForExtensionId(extensionRecordId, hostPid), ERR_OK);
     TAG_LOGI(AAFwkTag::TEST, "end.");
 }
 } // namespace AbilityRuntime
diff --git a/test/unittest/ui_extension/extension_record_manager_test/extension_record_manager_test.cpp b/test/unittest/ui_extension/extension_record_manager_test/extension_record_manager_test.cpp
index 248b2cd900..5d4ec1664c 100755
--- a/test/unittest/ui_extension/extension_record_manager_test/extension_record_manager_test.cpp
+++ b/test/unittest/ui_extension/extension_record_manager_test/extension_record_manager_test.cpp
@@ -255,8 +255,8 @@ HWTEST_F(ExtensionRecordManagerTest, GetAbilityRecordBySessionInfo_0100, TestSiz
     std::string  bundleName = "";
     extRecordMgr->GetOrCreateExtensionRecord(abilityRequest, bundleName, abilityRecord2, bLoaded);
     extRecordMgr->GetOrCreateExtensionRecord(abilityRequest2, bundleName, abilityRecord2, bLoaded);
-    bundleName = "";
-    extRecordMgr->GetHostBundleNameForExtensionId(extensionRecordId, bundleName);
+    int32_t hostPid = 0;
+    extRecordMgr->GetHostPidForExtensionId(extensionRecordId, hostPid);
 }
 
 /**
@@ -450,8 +450,9 @@ HWTEST_F(ExtensionRecordManagerTest, IsPreloadExtensionRecord_0100, TestSize.Lev
     std::shared_ptr<ExtensionRecord> extRecord = std::make_shared<ExtensionRecord>(abilityRecord);
     std::string hostBundleName = "testHostBundleName";
     bool isLoaded = false;
+    int32_t hostPid = 0;
 
-    bool result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostBundleName, extRecord, isLoaded);
+    bool result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostPid, extRecord, isLoaded);
     EXPECT_FALSE(result);
 
     std::string deviceId = "testDeviceId";
@@ -459,23 +460,23 @@ HWTEST_F(ExtensionRecordManagerTest, IsPreloadExtensionRecord_0100, TestSize.Lev
     std::string abilityName = "testAbilityName";
     std::string moduleName = "testModuleName";
     abilityRequest.want.SetElementName(deviceId, bundleName, abilityName, moduleName);
-    auto extensionRecordMapKey = std::make_tuple(abilityName, bundleName, moduleName, hostBundleName);
+    auto extensionRecordMapKey = std::make_tuple(abilityName, bundleName, moduleName, hostPid);
     std::vector<std::shared_ptr<ExtensionRecord>> nullExtensions;
     std::vector<std::shared_ptr<ExtensionRecord>> extensions;
 
     extensions.push_back(extRecord);
     extRecordMgr->preloadUIExtensionMap_.insert({extensionRecordMapKey, extensions});
-    result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostBundleName, extRecord, isLoaded);
+    result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostPid, extRecord, isLoaded);
     EXPECT_TRUE(isLoaded);
     EXPECT_TRUE(result);
 
     extRecordMgr->preloadUIExtensionMap_[extensionRecordMapKey] = nullExtensions;
-    result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostBundleName, extRecord, isLoaded);
+    result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostPid, extRecord, isLoaded);
     EXPECT_FALSE(result);
 
     nullExtensions.push_back(nullptr);
     extRecordMgr->preloadUIExtensionMap_[extensionRecordMapKey] = nullExtensions;
-    result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostBundleName, extRecord, isLoaded);
+    result = extRecordMgr->IsPreloadExtensionRecord(abilityRequest, hostPid, extRecord, isLoaded);
     EXPECT_FALSE(result);
 }
 
@@ -510,6 +511,7 @@ HWTEST_F(ExtensionRecordManagerTest, GetOrCreateExtensionRecord_0100, TestSize.L
     std::shared_ptr<ExtensionRecord> extRecord =
         std::make_shared<ExtensionRecord>(abilityRecord);
     extRecord->abilityRecord_ = abilityRecord;
+    int32_t hostPid = 0;
     std::string hostBundleName = "testHostBundleName";
     bool isLoaded = false;
 
@@ -519,7 +521,7 @@ HWTEST_F(ExtensionRecordManagerTest, GetOrCreateExtensionRecord_0100, TestSize.L
     std::string moduleName = "testModuleName";
     abilityRequest.want.SetElementName(deviceId, bundleName, abilityName, moduleName);
     auto extensionRecordMapKey = std::make_tuple(abilityName,
-        bundleName, moduleName, hostBundleName);
+        bundleName, moduleName, hostPid);
     std::vector<std::shared_ptr<ExtensionRecord>> nullExtensions;
     std::vector<std::shared_ptr<ExtensionRecord>> extensions;
 
@@ -527,7 +529,7 @@ HWTEST_F(ExtensionRecordManagerTest, GetOrCreateExtensionRecord_0100, TestSize.L
     extRecordMgr->preloadUIExtensionMap_.insert({extensionRecordMapKey, extensions});
     auto ret = extRecordMgr->GetOrCreateExtensionRecord(abilityRequest,
         hostBundleName, abilityRecord, isLoaded);
-    EXPECT_EQ(ret, ERR_OK);
+    EXPECT_NE(ret, ERR_OK);
 }
 
 /**