diff --git a/services/distributeddataservice/framework/cloud/cloud_server.cpp b/services/distributeddataservice/framework/cloud/cloud_server.cpp
index 2841cf0b29aabee3ecd2b7e37b86428217946d42..f547b7ef3d32a0410da135a9a8db1a44bfe702c5 100644
--- a/services/distributeddataservice/framework/cloud/cloud_server.cpp
+++ b/services/distributeddataservice/framework/cloud/cloud_server.cpp
@@ -21,9 +21,19 @@ CloudServer *CloudServer::GetInstance()
     return instance_;
 }
 
+CloudServer::~CloudServer()
+{
+    if (instance_ != nullptr) {
+        delete instance_;
+        instance_ = nullptr;
+    }
+}
 bool CloudServer::RegisterCloudInstance(CloudServer *instance)
 {
     if (instance_ != nullptr) {
+        if (instance != nullptr) {
+            delete instance;
+        }
         return false;
     }
     instance_ = instance;
diff --git a/services/distributeddataservice/framework/include/cloud/cloud_server.h b/services/distributeddataservice/framework/include/cloud/cloud_server.h
index 9cb060c81f0b941b0356242c364dcf0d477df30a..ac82de30b33bb806d667aeac4897d2041a409cf3 100644
--- a/services/distributeddataservice/framework/include/cloud/cloud_server.h
+++ b/services/distributeddataservice/framework/include/cloud/cloud_server.h
@@ -45,6 +45,8 @@ public:
     virtual bool IsSupportCloud(int32_t userId);
 
 private:
+    virtual ~CloudServer();
+
     static CloudServer *instance_;
 };
 } // namespace OHOS::DistributedData