diff --git a/interfaces/inner_api/dataobs_manager/include/dataobs_mgr_client.h b/interfaces/inner_api/dataobs_manager/include/dataobs_mgr_client.h
index d6789dee21..24b7ec0ea6 100644
--- a/interfaces/inner_api/dataobs_manager/include/dataobs_mgr_client.h
+++ b/interfaces/inner_api/dataobs_manager/include/dataobs_mgr_client.h
@@ -135,7 +135,6 @@ private:
 
     static constexpr int RESUB_INTERVAL = 2;
     static std::mutex mutex_;
-    static std::shared_ptr<DataObsMgrClient> instance_;
     sptr<IDataObsMgr> dataObsManger_;
     ConcurrentMap<sptr<IDataAbilityObserver>, std::list<Uri>> observers_;
 
diff --git a/services/dataobsmgr/src/dataobs_mgr_client.cpp b/services/dataobsmgr/src/dataobs_mgr_client.cpp
index 6fbf4d8f6f..cf6f5c76e0 100644
--- a/services/dataobsmgr/src/dataobs_mgr_client.cpp
+++ b/services/dataobsmgr/src/dataobs_mgr_client.cpp
@@ -24,7 +24,6 @@
 
 namespace OHOS {
 namespace AAFwk {
-std::shared_ptr<DataObsMgrClient> DataObsMgrClient::instance_ = nullptr;
 std::mutex DataObsMgrClient::mutex_;
 
 class DataObsMgrClient::SystemAbilityStatusChangeListener
@@ -52,13 +51,8 @@ void DataObsMgrClient::SystemAbilityStatusChangeListener::OnAddSystemAbility(
 
 std::shared_ptr<DataObsMgrClient> DataObsMgrClient::GetInstance()
 {
-    if (instance_ == nullptr) {
-        std::lock_guard<std::mutex> lock_l(mutex_);
-        if (instance_ == nullptr) {
-            instance_ = std::make_shared<DataObsMgrClient>();
-        }
-    }
-    return instance_;
+    static std::shared_ptr<DataObsMgrClient> proxy = std::make_shared<DataObsMgrClient>();
+    return proxy;
 }
 
 DataObsMgrClient::DataObsMgrClient()