diff --git a/zh-cn/application-dev/reference/apis/js-apis-wallpaper.md b/zh-cn/application-dev/reference/apis/js-apis-wallpaper.md
index b26073f45b7d1cf4dfb0ad3b9de9a6ebe6a8dccc..323a24ebbd13773a98351c592d03bd7f905ad7a7 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-wallpaper.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-wallpaper.md
@@ -606,7 +606,7 @@ getPixelMap(wallpaperType: WallpaperType, callback: AsyncCallback<image.Pixel
 **示例：**
   
   ```js
-  wallpaper.getPixelMap(WALLPAPER_SYSTEM, function (err, data) {
+  wallpaper.getPixelMap(wallpaper.WallpaperType.WALLPAPER_SYSTEM, function (err, data) {
       console.info('wallpaperXTS ===> testGetPixelMapCallbackSystem err : ' + JSON.stringify(err));
       console.info('wallpaperXTS ===> testGetPixelMapCallbackSystem data : ' + JSON.stringify(data));
   });