diff --git a/src/search/README.md b/src/search/README.md
index 6c9e751e0..4216b5066 100644
--- a/src/search/README.md
+++ b/src/search/README.md
@@ -62,13 +62,13 @@ Use `action` slot to custom right button, `cancel` event will no longer be trigg
 
 ### Props
 
-Search support all native properties of input tag，such as `maxlength`、`placeholder`、`autofocus`
-
 | Attribute | Description | Type | Default | Version |
 |------|------|------|------|------|
 | label | Left side label | *string* | - | - |
 | shape | Shape of field, can be set to `round` | *string* | `square` | - |
 | background | Background color of field | *string* | `#f2f2f2` | - |
+| maxlength | Max length of value | *string \| number* | - | - |
+| placeholder | Placeholder | *string* | - | - |
 | clearable | Whether to be clearable | *boolean* | `true` | - |
 | show-action | Whether to show right action button | *boolean* | `false` | - |
 | action-text | Text of action button | *boolean* | `Cancel` | 2.2.2 |
diff --git a/src/search/README.zh-CN.md b/src/search/README.zh-CN.md
index b330e612b..02f3c4f1e 100644
--- a/src/search/README.zh-CN.md
+++ b/src/search/README.zh-CN.md
@@ -57,13 +57,13 @@ Search 组件提供了`search`和`cancel`事件，`search`事件在点击键盘
 
 ### Props
 
-Search 默认支持 Input 标签所有的原生属性，比如 `maxlength`、`placeholder`、`autofocus` 等
-
 | 参数 | 说明 | 类型 | 默认值 | 版本 |
 |------|------|------|------|------|
 | label | 搜索框左侧文本 | *string* | - | - |
 | shape | 搜索框形状，可选值为 `round` | *string* | `square` | - |
 | background | 搜索框背景色 | *string* | `#f2f2f2` | - |
+| maxlength | 输入的最大字符数 | *string \| number* | - | - |
+| placeholder | 占位提示文字 | *string* | - | - |
 | clearable | 是否启用清除控件 | *boolean* | `true` | - |
 | show-action | 是否在搜索框右侧显示取消按钮 | *boolean* | `false` | - |
 | action-text | 取消按钮文字 | *boolean* | `取消` | 2.2.2 |