diff --git a/docs/docs/modules/picker.md b/docs/docs/modules/picker.md
index 5fc1c30..5fff7ab 100644
--- a/docs/docs/modules/picker.md
+++ b/docs/docs/modules/picker.md
@@ -1,5 +1,9 @@
 # picker
 
+::: danger
+`<picker>` is only supported on Android and iOS, and is not supported on web.
+:::
+
 A series of stream api. It provides function: pick data, pick date, pick time
 
 # API
diff --git a/docs/zh/docs/modules/picker.md b/docs/zh/docs/modules/picker.md
index 4142235..7a824b7 100644
--- a/docs/zh/docs/modules/picker.md
+++ b/docs/zh/docs/modules/picker.md
@@ -1,5 +1,9 @@
 # picker
 
+::: danger
+`<picker>` 只支持 Android 和 iOS，不支持 Web.
+:::
+
 以下为 picker 相关的 API，用于数据选择，日期选择，时间选择。（ H5模块如需使用，请手动引入 [weex-picker组件](https://github.com/weexteam/weex-picker)）。
 
 # API