diff --git a/frameworks/native/ability/ability_runtime/ability_context_impl.cpp b/frameworks/native/ability/ability_runtime/ability_context_impl.cpp
index 70d2e006ab..7136816ab6 100644
--- a/frameworks/native/ability/ability_runtime/ability_context_impl.cpp
+++ b/frameworks/native/ability/ability_runtime/ability_context_impl.cpp
@@ -145,6 +145,22 @@ ErrCode AbilityContextImpl::StartAbility(const AAFwk::Want& want, int requestCod
 {
     HITRACE_METER_NAME(HITRACE_TAG_ABILITY_MANAGER, __PRETTY_FUNCTION__);
     HILOG_DEBUG("StartAbility");
+    int32_t screenMode = want.GetIntParam(AAFwk::SCREEN_MODE_KEY, AAFwk::IDLE_SCREEN_MODE);
+    if (screenMode == AAFwk::HALF_SCREEN_MODE) {
+        auto uiContent = GetUIContent();
+        if (uiContent == nullptr) {
+            HILOG_ERROR("uiContent is nullptr");
+            return ERR_INVALID_VALUE;
+        }
+        Ace::ModalUIExtensionCallbacks callback;
+        Ace::ModalUIExtensionConfig config;
+        int32_t sessionId = uiContent->CreateModalUIExtension(want, callback, config);
+        if (sessionId == 0) {
+            HILOG_ERROR("CreateModalUIExtension failed");
+            return ERR_INVALID_VALUE;
+        }
+        return ERR_OK;
+    }
     ErrCode err = AAFwk::AbilityManagerClient::GetInstance()->StartAbility(want, token_, requestCode);
     if (err != ERR_OK) {
         HILOG_ERROR("StartAbility. ret=%{public}d", err);
diff --git a/frameworks/native/ability/native/ui_extension_ability/js_ui_extension.cpp b/frameworks/native/ability/native/ui_extension_ability/js_ui_extension.cpp
index 26cda9d581..9525faa198 100755
--- a/frameworks/native/ability/native/ui_extension_ability/js_ui_extension.cpp
+++ b/frameworks/native/ability/native/ui_extension_ability/js_ui_extension.cpp
@@ -588,8 +588,15 @@ bool JsUIExtension::HandleSessionCreate(const AAFwk::Want &want, const sptr<AAFw
         napi_create_reference(env, nativeContentSession, 1, &ref);
         contentSessions_.emplace(
             componentId, std::shared_ptr<NativeReference>(reinterpret_cast<NativeReference*>(ref)));
-        napi_value argv[] = {napiWant, nativeContentSession};
-        CallObjectMethod("onSessionCreate", argv, ARGC_TWO);
+        int32_t screenMode = want.GetIntParam(AAFwk::SCREEN_MODE_KEY, AAFwk::IDLE_SCREEN_MODE);
+        if (screenMode == AAFwk::HALF_SCREEN_MODE) {
+            screenMode_ = AAFwk::HALF_SCREEN_MODE;
+            napi_value argv[] = {nullptr};
+            CallObjectMethod("onWindowStageCreate", argv, ARGC_ONE);
+        } else {
+            napi_value argv[] = {napiWant, nativeContentSession};
+            CallObjectMethod("onSessionCreate", argv, ARGC_TWO);
+        }
         uiWindowMap_[componentId] = uiWindow;
         if (context->GetWindow() == nullptr) {
             context->SetWindow(uiWindow);
@@ -650,8 +657,13 @@ void JsUIExtension::DestroyWindow(const sptr<AAFwk::SessionInfo> &sessionInfo)
     }
     if (contentSessions_.find(componentId) != contentSessions_.end() && contentSessions_[componentId] != nullptr) {
         HandleScope handleScope(jsRuntime_);
-        napi_value argv[] = {contentSessions_[componentId]->GetNapiValue()};
-        CallObjectMethod("onSessionDestroy", argv, ARGC_ONE);
+        if (screenMode_ == AAFwk::HALF_SCREEN_MODE) {
+            screenMode_ = AAFwk::IDLE_SCREEN_MODE;
+            CallObjectMethod("onWindowStageDestroy");
+        } else {
+            napi_value argv[] = {contentSessions_[componentId]->GetNapiValue()};
+            CallObjectMethod("onSessionDestroy", argv, ARGC_ONE);
+        }
     }
     auto& uiWindow = uiWindowMap_[componentId];
     if (uiWindow) {
diff --git a/interfaces/kits/native/ability/native/ui_extension_ability/js_ui_extension.h b/interfaces/kits/native/ability/native/ui_extension_ability/js_ui_extension.h
index a3580130d4..960379e66a 100755
--- a/interfaces/kits/native/ability/native/ui_extension_ability/js_ui_extension.h
+++ b/interfaces/kits/native/ability/native/ui_extension_ability/js_ui_extension.h
@@ -210,6 +210,7 @@ private:
     std::set<uint64_t> foregroundWindows_;
     std::map<uint64_t, std::shared_ptr<NativeReference>> contentSessions_;
     std::shared_ptr<AbilityResultListeners> abilityResultListeners_ = nullptr;
+    int32_t screenMode_ = AAFwk::IDLE_SCREEN_MODE;
 };
 }  // namespace AbilityRuntime
 }  // namespace OHOS
diff --git a/services/abilitymgr/include/ability_manager_service.h b/services/abilitymgr/include/ability_manager_service.h
index 2f0a56169d..cc9959d2b2 100644
--- a/services/abilitymgr/include/ability_manager_service.h
+++ b/services/abilitymgr/include/ability_manager_service.h
@@ -1713,6 +1713,9 @@ private:
 
     void AppRecoverKill(pid_t pid, int32_t reason);
 
+    int32_t GenerateEmbeddableUIAbilityRequest(const Want &want, AbilityRequest &request,
+        const sptr<IRemoteObject> &callerToken, int32_t userId);
+
     /**
      * Check if Caller is allowed to start ServiceAbility(FA) or ServiceExtension(Stage) or DataShareExtension(Stage).
      *
diff --git a/services/abilitymgr/src/ability_manager_service.cpp b/services/abilitymgr/src/ability_manager_service.cpp
index 94b7609ce8..31b842f189 100644
--- a/services/abilitymgr/src/ability_manager_service.cpp
+++ b/services/abilitymgr/src/ability_manager_service.cpp
@@ -230,6 +230,7 @@ const std::string NEED_STARTINGWINDOW = "ohos.ability.NeedStartingWindow";
 const std::string PERMISSIONMGR_BUNDLE_NAME = "com.ohos.permissionmanager";
 const std::string PERMISSIONMGR_ABILITY_NAME = "com.ohos.permissionmanager.GrantAbility";
 const std::string IS_CALL_BY_SCB = "isCallBySCB";
+const std::string PROCESS_SUFFIX = "embeddable";
 const int DEFAULT_DMS_MISSION_ID = -1;
 const std::map<std::string, AbilityManagerService::DumpKey> AbilityManagerService::dumpMap = {
     std::map<std::string, AbilityManagerService::DumpKey>::value_type("--all", KEY_DUMP_ALL),
@@ -2387,7 +2388,7 @@ int AbilityManagerService::StartUIExtensionAbility(const sptr<SessionInfo> &exte
     abilityRequest.Voluation(extensionSessionInfo->want, DEFAULT_INVAL_VALUE, callerToken);
     abilityRequest.callType = AbilityCallType::START_EXTENSION_TYPE;
     abilityRequest.sessionInfo = extensionSessionInfo;
-    result = GenerateExtensionAbilityRequest(extensionSessionInfo->want, abilityRequest, callerToken, validUserId);
+    result = GenerateEmbeddableUIAbilityRequest(extensionSessionInfo->want, abilityRequest, callerToken, validUserId);
     CHECK_POINTER_AND_RETURN(abilityRequest.sessionInfo, ERR_INVALID_VALUE);
     abilityRequest.sessionInfo->uiExtensionComponentId = (
         static_cast<uint64_t>(callerRecord->GetRecordId()) << OFFSET) |
@@ -9450,5 +9451,26 @@ void AbilityManagerService::RemoveLauncherDeathRecipient(int32_t userId)
     }
     connectManager->RemoveLauncherDeathRecipient();
 }
+
+int32_t AbilityManagerService::GenerateEmbeddableUIAbilityRequest(
+    const Want &want, AbilityRequest &request, const sptr<IRemoteObject> &callerToken, int32_t userId)
+{
+    int32_t screenMode = want.GetIntParam(AAFwk::SCREEN_MODE_KEY, AAFwk::IDLE_SCREEN_MODE);
+    int32_t result = ERR_OK;
+    if (screenMode == AAFwk::HALF_SCREEN_MODE) {
+        result = GenerateAbilityRequest(want, -1, request, callerToken, userId);
+        request.abilityInfo.isModuleJson = true;
+        request.abilityInfo.isStageBasedModel = true;
+        request.abilityInfo.type = AppExecFwk::AbilityType::EXTENSION;
+        request.abilityInfo.extensionAbilityType = AppExecFwk::ExtensionAbilityType::UI;
+        struct timespec time = {0, 0};
+        clock_gettime(CLOCK_MONOTONIC, &time);
+        int64_t times = static_cast<int64_t>(time.tv_sec);
+        request.abilityInfo.process = request.abilityInfo.bundleName + PROCESS_SUFFIX + std::to_string(times);
+    } else {
+        result = GenerateExtensionAbilityRequest(want, request, callerToken, userId);
+    }
+    return result;
+}
 }  // namespace AAFwk
 }  // namespace OHOS
diff --git a/test/unittest/ability_manager_service_first_test/ability_manager_service_first_test.cpp b/test/unittest/ability_manager_service_first_test/ability_manager_service_first_test.cpp
index 31388bf077..3482fea714 100644
--- a/test/unittest/ability_manager_service_first_test/ability_manager_service_first_test.cpp
+++ b/test/unittest/ability_manager_service_first_test/ability_manager_service_first_test.cpp
@@ -1484,5 +1484,40 @@ HWTEST_F(AbilityManagerServiceFirstTest, GetForegroundUIAbilities_001, TestSize.
     auto res = abilityMs_->GetForegroundUIAbilities(list);
     EXPECT_EQ(res, CHECK_PERMISSION_FAILED);
 }
+
+/*
+ * Feature: AbilityManagerService
+ * Function: GenerateEmbeddableUIAbilityRequest
+ * SubFunction: NA
+ * FunctionPoints: AbilityManagerService GenerateEmbeddableUIAbilityRequest
+ */
+HWTEST_F(AbilityManagerServiceFirstTest, GenerateEmbeddableUIAbilityRequest_001, TestSize.Level1)
+{
+    HILOG_INFO("AbilityManagerServiceSecondTest GenerateEmbeddableUIAbilityRequest_001 start");
+    auto abilityMs_ = std::make_shared<AbilityManagerService>();
+    Want want;
+    want.SetParam("ScreenMode", 1);
+    AbilityRequest request;
+    auto res = abilityMs_->GenerateEmbeddableUIAbilityRequest(want, request, nullptr, USER_ID_U100);
+    EXPECT_EQ(res, RESOLVE_ABILITY_ERR);
+    HILOG_INFO("AbilityManagerServiceSecondTest GenerateEmbeddableUIAbilityRequest_001 end");
+}
+
+/*
+ * Feature: AbilityManagerService
+ * Function: GenerateEmbeddableUIAbilityRequest
+ * SubFunction: NA
+ * FunctionPoints: AbilityManagerService GenerateEmbeddableUIAbilityRequest
+ */
+HWTEST_F(AbilityManagerServiceFirstTest, GenerateEmbeddableUIAbilityRequest_002, TestSize.Level1)
+{
+    HILOG_INFO("AbilityManagerServiceSecondTest GenerateEmbeddableUIAbilityRequest_002 start");
+    auto abilityMs_ = std::make_shared<AbilityManagerService>();
+    Want want;
+    AbilityRequest request;
+    auto res = abilityMs_->GenerateEmbeddableUIAbilityRequest(want, request, nullptr, USER_ID_U100);
+    EXPECT_EQ(res, RESOLVE_ABILITY_ERR);
+    HILOG_INFO("AbilityManagerServiceSecondTest GenerateEmbeddableUIAbilityRequest_002 end");
+}
 }  // namespace AAFwk
 }  // namespace OHOS
diff --git a/test/unittest/frameworks_kits_ability_ability_runtime_test/ability_context_impl_test.cpp b/test/unittest/frameworks_kits_ability_ability_runtime_test/ability_context_impl_test.cpp
index 6bee5dfcf2..f3cc680d91 100644
--- a/test/unittest/frameworks_kits_ability_ability_runtime_test/ability_context_impl_test.cpp
+++ b/test/unittest/frameworks_kits_ability_ability_runtime_test/ability_context_impl_test.cpp
@@ -556,6 +556,20 @@ HWTEST_F(AbilityContextImplTest, Ability_Context_Impl_StartAbility_0400, Functio
     EXPECT_EQ(ret, ERR_OK);
 }
 
+/**
+ * @tc.number: Ability_Context_Impl_StartAbility_0500
+ * @tc.name: StartAbility
+ * @tc.desc: Start Ability
+ */
+HWTEST_F(AbilityContextImplTest, Ability_Context_Impl_StartAbility_0500, Function | MediumTest | Level1)
+{
+    AAFwk::Want want;
+    want.SetParam("ScreenMode", 1);
+    int32_t requestCode = 1;
+    auto ret = context_->StartAbility(want, requestCode);
+    EXPECT_EQ(ret, ERR_INVALID_VALUE);
+}
+
 /**
  * @tc.number: Ability_Context_Impl_OnAbilityResult_0100
  * @tc.name: OnAbilityResult