diff --git a/services/source/inputinject/src/distributed_input_inject.cpp b/services/source/inputinject/src/distributed_input_inject.cpp
index a2713ba..65483fe 100644
--- a/services/source/inputinject/src/distributed_input_inject.cpp
+++ b/services/source/inputinject/src/distributed_input_inject.cpp
@@ -79,13 +79,7 @@ int32_t DistributedInputInject::UnregisterDistributedHardware(const std::string
         return ERR_DH_INPUT_SERVER_SOURCE_INJECT_UNREGISTER_FAIL;
     }
 
-    std::string srcDevId;
-    inputNodeManager_->GetDeviceInfo(srcDevId);
-
-    DHLOGI("UnregisterDistributedHardware called, device = %s, dhId = %s, OnNodeOffLine",
-        GetAnonyString(devId).c_str(), GetAnonyString(dhId).c_str());
-    SyncNodeOfflineInfo(srcDevId, devId, dhId);
-
+    DHLOGI("UnregisterDistributedHardware success");
     return DH_SUCCESS;
 }
 
diff --git a/services/source/sourcemanager/include/distributed_input_source_manager.h b/services/source/sourcemanager/include/distributed_input_source_manager.h
index 61b6945..f709759 100644
--- a/services/source/sourcemanager/include/distributed_input_source_manager.h
+++ b/services/source/sourcemanager/include/distributed_input_source_manager.h
@@ -225,9 +225,6 @@ public:
 
         void OnMessage(const DHTopic topic, const std::string &message) override;
 
-    private:
-        void DeleteNodeInfoAndNotify(const std::string &offlineDevId);
-
     private:
         DistributedInputSourceManager *sourceManagerContext_;
     };
@@ -422,8 +419,6 @@ private:
     sptr<DeviceOfflineListener> deviceOfflineListener_ = nullptr;
 
     std::mutex valMutex_;
-    std::mutex syncNodeInfoMutex_;
-    std::map<std::string, std::set<BeRegNodeInfo>> syncNodeInfoMap_;
 
     int32_t RelayStartRemoteInputByType(const std::string &srcId, const std::string &sinkId, const uint32_t &inputTypes,
         sptr<IStartDInputCallback> callback);
@@ -438,10 +433,7 @@ private:
     int32_t RelayStopRemoteInputByDhid(const std::string &srcId, const std::string &sinkId,
         const std::vector<std::string> &dhIds, sptr<IStartStopDInputsCallback> callback);
     bool IsStringDataSame(const std::vector<std::string> &oldDhIds, std::vector<std::string> newDhIds);
-    void DeleteNodeInfoAndNotify(const std::string &offlineDevId);
-    std::set<BeRegNodeInfo> GetSyncNodeInfo(const std::string &devId);
-    void UpdateSyncNodeInfo(const std::string &devId, const std::string &dhId, const std::string &nodeDesc);
-    void DeleteSyncNodeInfo(const std::string &devId);
+
     void UnregisterDHFwkPublisher();
 };
 } // namespace DistributedInput
diff --git a/services/source/sourcemanager/src/distributed_input_source_manager.cpp b/services/source/sourcemanager/src/distributed_input_source_manager.cpp
index 1c1f293..a0fbb8a 100644
--- a/services/source/sourcemanager/src/distributed_input_source_manager.cpp
+++ b/services/source/sourcemanager/src/distributed_input_source_manager.cpp
@@ -1669,34 +1669,6 @@ void DistributedInputSourceManager::SetInputTypesMap(const std::string deviceId,
     InputTypesMap_[deviceId] = value;
 }
 
-std::set<BeRegNodeInfo> DistributedInputSourceManager::GetSyncNodeInfo(const std::string &devId)
-{
-    std::lock_guard<std::mutex> lock(syncNodeInfoMutex_);
-    if (syncNodeInfoMap_.find(devId) == syncNodeInfoMap_.end()) {
-        DHLOGI("syncNodeInfoMap find not the key: %s", GetAnonyString(devId).c_str());
-        return {};
-    }
-    return syncNodeInfoMap_[devId];
-}
-
-void DistributedInputSourceManager::UpdateSyncNodeInfo(const std::string &userDevId, const std::string &dhId,
-    const std::string &nodeDesc)
-{
-    std::lock_guard<std::mutex> lock(syncNodeInfoMutex_);
-    if (syncNodeInfoMap_.find(userDevId) == syncNodeInfoMap_.end()) {
-        DHLOGI("syncNodeInfoMap has not the key: %s, So create this entry", GetAnonyString(userDevId).c_str());
-        std::set<BeRegNodeInfo> syncNodeInfo;
-        syncNodeInfoMap_[userDevId] = syncNodeInfo;
-    }
-    syncNodeInfoMap_[userDevId].insert({userDevId, dhId, nodeDesc});
-}
-
-void DistributedInputSourceManager::DeleteSyncNodeInfo(const std::string &devId)
-{
-    std::lock_guard<std::mutex> lock(syncNodeInfoMutex_);
-    syncNodeInfoMap_.erase(devId);
-}
-
 void DistributedInputSourceManager::StartDScreenListener::OnMessage(const DHTopic topic, const std::string &message)
 {
     DHLOGI("StartDScreenListener OnMessage!");
@@ -1887,26 +1859,6 @@ void DistributedInputSourceManager::DeviceOfflineListener::OnMessage(const DHTop
         DHLOGE("this message is empty");
         return;
     }
-    DeleteNodeInfoAndNotify(message);
-}
-
-void DistributedInputSourceManager::DeviceOfflineListener::DeleteNodeInfoAndNotify(const std::string &offlineDevId)
-{
-    DHLOGI("DeviceOfflineListener DeleteNodeInfoAndNotify!");
-    if (sourceManagerContext_ == nullptr) {
-        DHLOGE("sourceManagerContext is nullptr!");
-        return;
-    }
-    std::set<BeRegNodeInfo> nodeSet = sourceManagerContext_->GetSyncNodeInfo(offlineDevId);
-    std::string localNetWorkId = GetLocalNetworkId();
-    for (const auto &node : nodeSet) {
-        DHLOGI("DeleteNodeInfoAndNotify device: %s, dhId: %s", GetAnonyString(offlineDevId).c_str(),
-            GetAnonyString(node.dhId).c_str());
-        // Notify multimodal
-        DistributedInputInject::GetInstance().SyncNodeOfflineInfo(offlineDevId, localNetWorkId, node.dhId);
-    }
-    // Delete info
-    sourceManagerContext_->DeleteSyncNodeInfo(offlineDevId);
 }
 
 DistributedInputSourceManager::DScreenSourceSvrRecipient::DScreenSourceSvrRecipient(const std::string &srcDevId,
diff --git a/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.cpp b/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.cpp
index 9830edc..43ed88d 100644
--- a/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.cpp
+++ b/services/source/sourcemanager/test/sourcemanagerunittest/distributed_input_sourcemanager_test.cpp
@@ -1632,47 +1632,6 @@ HWTEST_F(DistributedInputSourceManagerTest, SetInputTypesMap_01, testing::ext::T
     EXPECT_EQ(true, sourceManager_->InputTypesMap_.empty());
 }
 
-HWTEST_F(DistributedInputSourceManagerTest, GetSyncNodeInfo_01, testing::ext::TestSize.Level1)
-{
-    std::string userDevId = "umkyu1b165e1be98151891erbe8r91ev";
-    std::string dhId = "input_slkdiek3kddkeojfe";
-    std::string nodeDesc = "input_deviceid:umkyu1b165e1be98151891erbe8r91ev, input_dhid:slkdiek3kddkeojfe";
-    sourceManager_->syncNodeInfoMap_[userDevId].insert({userDevId, dhId, nodeDesc});
-    std::string devId = "sd6f4s6d5f46s5d4f654564sdfdfsdfsdfd55";
-    sourceManager_->GetSyncNodeInfo(devId);
-    EXPECT_EQ(1, sourceManager_->GetSyncNodeInfo(userDevId).size());
-}
-
-HWTEST_F(DistributedInputSourceManagerTest, UpdateSyncNodeInfo_01, testing::ext::TestSize.Level1)
-{
-    std::string userDevId = "umkyu1b165e1be98151891erbe8r91ev";
-    std::string dhId = "input_slkdiek3kddkeojfe";
-    std::string nodeDesc = "input_deviceid:umkyu1b165e1be98151891erbe8r91ev, input_dhid:slkdiek3kddkeojfe";
-    sourceManager_->syncNodeInfoMap_[userDevId].insert({userDevId, dhId, nodeDesc});
-    sourceManager_->UpdateSyncNodeInfo(userDevId, dhId, nodeDesc);
-    EXPECT_EQ(1, sourceManager_->syncNodeInfoMap_.size());
-}
-
-HWTEST_F(DistributedInputSourceManagerTest, UpdateSyncNodeInfo_02, testing::ext::TestSize.Level1)
-{
-    std::string userDevId = "umkyu1b165e1be98151891erbe8r91ev";
-    std::string dhId = "input_slkdiek3kddkeojfe";
-    std::string nodeDesc = "input_deviceid:umkyu1b165e1be98151891erbe8r91ev, input_dhid:slkdiek3kddkeojfe";
-    sourceManager_->syncNodeInfoMap_.clear();
-    sourceManager_->UpdateSyncNodeInfo(userDevId, dhId, nodeDesc);
-    EXPECT_EQ(1, sourceManager_->syncNodeInfoMap_.size());
-}
-
-HWTEST_F(DistributedInputSourceManagerTest, DeleteSyncNodeInfo_01, testing::ext::TestSize.Level1)
-{
-    std::string userDevId = "umkyu1b165e1be98151891erbe8r91ev";
-    std::string dhId = "input_slkdiek3kddkeojfe";
-    std::string nodeDesc = "input_deviceid:umkyu1b165e1be98151891erbe8r91ev, input_dhid:slkdiek3kddkeojfe";
-    sourceManager_->syncNodeInfoMap_[userDevId].insert({userDevId, dhId, nodeDesc});
-    sourceManager_->DeleteSyncNodeInfo(userDevId);
-    EXPECT_EQ(0, sourceManager_->syncNodeInfoMap_.size());
-}
-
 HWTEST_F(DistributedInputSourceManagerTest, Dump_01, testing::ext::TestSize.Level1)
 {
     int32_t fd = 1;