diff --git a/services/native/include/usb_service.h b/services/native/include/usb_service.h
index 61b66be3cf7ea35449bfea766ab1128b63b869cd..70959c0d0a3bc856c03b6302ed6435de89b84e86 100644
--- a/services/native/include/usb_service.h
+++ b/services/native/include/usb_service.h
@@ -288,6 +288,7 @@ private:
     int32_t commEventRetryTimes_ = 0;
     std::mutex mutex_;
     std::mutex serialPidVidMapMutex_;
+    std::mutex unloadSelfTimerMutex_;
 #ifdef USB_MANAGER_FEATURE_HOST
     std::shared_ptr<UsbHostManager> usbHostManager_;
 #endif // USB_MANAGER_FEATURE_HOST
diff --git a/services/native/src/usb_service.cpp b/services/native/src/usb_service.cpp
index e3cbdfa67dacce30fbabec43d1823d7c973bbd87..073856ccfad788f6d86c83fa2747aa31dbd9d55b 100644
--- a/services/native/src/usb_service.cpp
+++ b/services/native/src/usb_service.cpp
@@ -2396,6 +2396,7 @@ void UsbService::UnLoadSelf(UnLoadSaType type)
         return;
     }
 #endif // USB_MANAGER_FEATURE_DEVICE
+    std::lock_guard<std::mutex> guard(unloadSelfTimerMutex_);
     unloadSelfTimer_.Unregister(unloadSelfTimerId_);
     unloadSelfTimer_.Shutdown();