diff --git a/interfaces/inner_api/native/session/include/av_router.h b/interfaces/inner_api/native/session/include/av_router.h
index 2e4c2b8d89ed50bed9e2fd682fd2367a38d56c8b..6c9ba12cb03c30377e74082405a29ba557456070 100644
--- a/interfaces/inner_api/native/session/include/av_router.h
+++ b/interfaces/inner_api/native/session/include/av_router.h
@@ -273,14 +273,6 @@ public:
     */
     void OnCastEventRecv(int32_t errorCode, std::string& errorMsg);
 
-    /**
-     * @brief clear outputDevice.
-     *
-     * @param { std::string } sessionId - avsession id.
-     * @since 13
-    */
-    virtual void ClearOutputDevice(std::string sessionId) = 0;
-
     /**
      * @brief disconnect other session.
      *
diff --git a/services/session/server/avrouter_impl.cpp b/services/session/server/avrouter_impl.cpp
index 664e5ad96183df82d3fb5ee4c2190b9572d465d8..ad0b1d07dd978b719ed5be6f760771d59460184b 100644
--- a/services/session/server/avrouter_impl.cpp
+++ b/services/session/server/avrouter_impl.cpp
@@ -545,21 +545,6 @@ void AVRouterImpl::OnCastEventRecv(int32_t errorCode, std::string& errorMsg)
     }
 }
 
-void AVRouterImpl::ClearOutputDevice(std::string sessionId)
-{
-    for (const auto& [number, castHandleInfo] : castHandleToInfoMap_) {
-        if (castHandleInfo.sessionId_ == sessionId) {
-            OutputDeviceInfo localDevice;
-            DeviceInfo localInfo;
-            localInfo.castCategory_ = AVCastCategory::CATEGORY_LOCAL;
-            localInfo.deviceId_ = "-1";
-            localInfo.deviceName_ = "LocalDevice";
-            localDevice.deviceInfos_.emplace_back(localInfo);
-            castHandleToInfoMap_[number].outputDeviceInfo_ = localDevice;
-        }
-    }
-}
-
 void AVRouterImpl::DisconnetOtherSession(std::string sessionId, DeviceInfo deviceInfo)
 {
     for (const auto& [string, avRouterListener] : mirrorSessionMap_) {
diff --git a/services/session/server/avrouter_impl.h b/services/session/server/avrouter_impl.h
index bb2a889132f3fdbd252429a36347f77338207c35..804a73864bb0281e8d50de7875b21ed08fff99d6 100644
--- a/services/session/server/avrouter_impl.h
+++ b/services/session/server/avrouter_impl.h
@@ -97,8 +97,6 @@ public:
 
     void OnCastEventRecv(int32_t errorCode, std::string& errorMsg);
 
-    void ClearOutputDevice(std::string sessionId) override;
-
     void DisconnetOtherSession(std::string sessionId, DeviceInfo deviceInfo) override;
 
 protected:
diff --git a/services/session/server/avsession_item.cpp b/services/session/server/avsession_item.cpp
index 33343d908a629f0d37a0ad79fae9c345010ac55e..9fd5d146b370b87e71018cab88c11c736e8a23f1 100644
--- a/services/session/server/avsession_item.cpp
+++ b/services/session/server/avsession_item.cpp
@@ -166,7 +166,6 @@ int32_t AVSessionItem::DestroyTask()
             CollaborationManager::GetInstance().PublishServiceState(collaborationNeedNetworkId_.c_str(),
                 ServiceCollaborationManagerBussinessStatus::SCM_IDLE);
         }
-        AVRouter::GetInstance().ClearOutputDevice(GetSessionId());
         AVRouter::GetInstance().UnRegisterCallback(castHandle_, cssListener_, GetSessionId());
         ReleaseCast();
         StopCastSession();