diff --git a/docs/api/ui/locale.md b/docs/api/ui/locale.md
index 15427762722b6b6070fd862f9f59d1690e7eff54..90c356605f29d80293512b004382c832b9a000aa 100644
--- a/docs/api/ui/locale.md
+++ b/docs/api/ui/locale.md
@@ -28,7 +28,7 @@
 
 ### uni.onLocaleChange(callback)
 
-设置当前语言
+用于监听应用语言切换
 
 **平台差异说明**