diff --git a/services/distributedfiledaemon/include/ipc/daemon.h b/services/distributedfiledaemon/include/ipc/daemon.h
index a1a3ecc87bd46d6782c8a00c964e9e98635ff188..1ed72b23cb1854ab4a861b6b6cc74ac6b1207524 100644
--- a/services/distributedfiledaemon/include/ipc/daemon.h
+++ b/services/distributedfiledaemon/include/ipc/daemon.h
@@ -21,6 +21,7 @@
 #include "daemon_stub.h"
 #include "i_daemon.h"
 #include "iremote_stub.h"
+#include "multiuser/os_account_observer.h"
 #include "system_ability.h"
 
 namespace OHOS {
@@ -50,7 +51,7 @@ private:
     static sptr<Daemon> instance_;
     static std::mutex instanceLock_;
     bool registerToService_ { false };
-
+    std::shared_ptr<OsAccountObserver> subScriber_;
     void PublishSA();
     void RegisterOsAccount();
 };
diff --git a/services/distributedfiledaemon/src/ipc/daemon.cpp b/services/distributedfiledaemon/src/ipc/daemon.cpp
index f50c2d5701b7af4157adef38d079cbf2e3eeddf9..53c7ce5a24f2434ab42baf54f292f375a0fc8731 100644
--- a/services/distributedfiledaemon/src/ipc/daemon.cpp
+++ b/services/distributedfiledaemon/src/ipc/daemon.cpp
@@ -16,7 +16,6 @@
 #include "ipc/daemon.h"
 
 #include "mountpoint/mount_manager.h"
-#include "multiuser/os_account_observer.h"
 #include "os_account_manager.h"
 #include "system_ability_definition.h"
 #include "utils_log.h"
@@ -47,10 +46,11 @@ void Daemon::RegisterOsAccount()
     osAccountSubscribeInfo.SetOsAccountSubscribeType(OHOS::AccountSA::OS_ACCOUNT_SUBSCRIBE_TYPE::ACTIVED);
     osAccountSubscribeInfo.SetName("distributed_file_service");
 
-    auto subScriber = std::make_shared<OsAccountObserver>(osAccountSubscribeInfo);
-    int ret = OHOS::AccountSA::OsAccountManager::SubscribeOsAccount(subScriber);
+    subScriber_ = std::make_shared<OsAccountObserver>(osAccountSubscribeInfo);
+    int ret = OHOS::AccountSA::OsAccountManager::SubscribeOsAccount(subScriber_);
     if (ret != 0) {
         LOGE("register os account fail ret %{public}d", ret);
+        return;
     }
     LOGI("register os account success, ret %{public}d", ret);
 }
@@ -79,6 +79,11 @@ void Daemon::OnStop()
     LOGI("Begin to stop");
     state_ = ServiceRunningState::STATE_NOT_START;
     registerToService_ = false;
+    int32_t ret = OHOS::AccountSA::OsAccountManager::UnsubscribeOsAccount(subScriber_);
+    if (ret != 0) {
+        LOGI("UnsubscribeOsAccount failed, ret %{public}d", ret);
+    }
+    subScriber_ = nullptr;
     LOGI("Stop finished successfully");
 }