diff --git a/src/packages/form/demos/h5/demo7.tsx b/src/packages/form/demos/h5/demo7.tsx
index f0387f47a7..b917d8ea30 100644
--- a/src/packages/form/demos/h5/demo7.tsx
+++ b/src/packages/form/demos/h5/demo7.tsx
@@ -58,7 +58,7 @@ const Demo7 = () => {
         <Form.Item label="Input" name="form_input">
           <Input placeholder="placeholder" />
         </Form.Item>
-        <Form.Item label="Switch" name="switch">
+        <Form.Item label="Switch" name="switch" valuePropName="checked">
           <Switch />
         </Form.Item>
         <Form.Item label="Checkbox" name="checkbox">
diff --git a/src/packages/form/demos/taro/demo7.tsx b/src/packages/form/demos/taro/demo7.tsx
index b916be1409..1510b63d47 100644
--- a/src/packages/form/demos/taro/demo7.tsx
+++ b/src/packages/form/demos/taro/demo7.tsx
@@ -58,7 +58,7 @@ const Demo7 = () => {
         <Form.Item label="Input" name="form_input">
           <Input placeholder="placeholder" />
         </Form.Item>
-        <Form.Item label="Switch" name="switch">
+        <Form.Item label="Switch" name="switch" valuePropName="checked">
           <Switch />
         </Form.Item>
         <Form.Item label="Checkbox" name="checkbox">
diff --git a/src/packages/textarea/textarea.taro.tsx b/src/packages/textarea/textarea.taro.tsx
index 3a15ae7271..21b74b37fc 100644
--- a/src/packages/textarea/textarea.taro.tsx
+++ b/src/packages/textarea/textarea.taro.tsx
@@ -28,7 +28,6 @@ const defaultProps = {
   defaultValue: '',
   showCount: false,
   maxLength: 140,
-  placeholder: '',
   readOnly: false,
   disabled: false,
   autoSize: false,
diff --git a/src/packages/textarea/textarea.tsx b/src/packages/textarea/textarea.tsx
index 61b61d64a3..176ad9b3f9 100644
--- a/src/packages/textarea/textarea.tsx
+++ b/src/packages/textarea/textarea.tsx
@@ -26,7 +26,6 @@ const defaultProps = {
   showCount: false,
   rows: 2,
   maxLength: 140,
-  placeholder: '',
   readOnly: false,
   disabled: false,
   autoSize: false,