diff --git a/frameworks/ets/ani/user_auth/src/user_auth_widget_callback_v10.cpp b/frameworks/ets/ani/user_auth/src/user_auth_widget_callback_v10.cpp
index 534ea0143d4a919b60997bdc29ced06c5500215f..77feb17340b02e2f84d0577d9173d680ba6b2ff6 100644
--- a/frameworks/ets/ani/user_auth/src/user_auth_widget_callback_v10.cpp
+++ b/frameworks/ets/ani/user_auth/src/user_auth_widget_callback_v10.cpp
@@ -50,6 +50,7 @@ bool UserAuthWidgetCallback::HasCommandCallback()
 void UserAuthWidgetCallback::SendCommand(const std::string &cmdData)
 {
     IAM_LOGI("start");
+    std::lock_guard<std::mutex> guard(mutex_);
     if (commandCallback_ == nullptr) {
         IAM_LOGE("commandCallback_ is null");
         return;