diff --git a/zh-cn/application-dev/reference/apis/js-apis-device-manager.md b/zh-cn/application-dev/reference/apis/js-apis-device-manager.md
index 354c04c19c0b8885df6110358f03a9c908477c08..64ebffd8c0fdf454925971f382936df87e3bbd99 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-device-manager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-device-manager.md
@@ -22,7 +22,7 @@
 
 ## 导入模块
 
-```
+```js
 import deviceManager from '@ohos.distributedHardware.deviceManager';
 ```