diff --git a/src/field/README.md b/src/field/README.md
index 0d847973c..16bcb839e 100644
--- a/src/field/README.md
+++ b/src/field/README.md
@@ -242,6 +242,7 @@ Use `input-align` prop to align the input value
 | autosize | Textarea auto resize，can accpet an object,<br>e.g. { maxHeight: 100, minHeight: 50 } | *boolean \| object* | `false` |
 | left-icon | Left side icon name | *string* | - |
 | right-icon | Right side icon name | *string* | - |
+| icon-prefix `v2.5.3` | Icon className prefix | *string* | `van-icon` |
 | rules `v2.5.0` | Form validation rules | *Rule[]* | - |
 
 ### Events
diff --git a/src/field/README.zh-CN.md b/src/field/README.zh-CN.md
index dc8c57206..eda9b6ccc 100644
--- a/src/field/README.zh-CN.md
+++ b/src/field/README.zh-CN.md
@@ -261,6 +261,7 @@ export default {
 | autosize | 是否自适应内容高度，只对 textarea 有效，<br>可传入对象,如 { maxHeight: 100, minHeight: 50 }，<br>单位为`px` | *boolean \| object* | `false` |
 | left-icon | 左侧[图标名称](#/zh-CN/icon)或图片链接 | *string* | - |
 | right-icon | 右侧[图标名称](#/zh-CN/icon)或图片链接 | *string* | - |
+| icon-prefix `v2.5.3` | 图标类名前缀，同 Icon 组件的 [class-prefix 属性](#/zh-CN/icon#props) | *string* | `van-icon` |
 | rules `v2.5.0` | 表单校验规则，详见 [Form 组件](#/zh-CN/form#rule-shu-ju-jie-gou) | *Rule[]* | - |
 
 ### Events
diff --git a/src/field/index.js b/src/field/index.js
index c0b666d12..8289ef2c6 100644
--- a/src/field/index.js
+++ b/src/field/index.js
@@ -437,7 +437,9 @@ export default createComponent({
       if (showLeftIcon) {
         return (
           <div class={bem('left-icon')} onClick={this.onClickLeftIcon}>
-            {this.slots('left-icon') || <Icon name={this.leftIcon} />}
+            {this.slots('left-icon') || (
+              <Icon name={this.leftIcon} classPrefix={this.iconPrefix} />
+            )}
           </div>
         );
       }
@@ -450,7 +452,9 @@ export default createComponent({
       if (showRightIcon) {
         return (
           <div class={bem('right-icon')} onClick={this.onClickRightIcon}>
-            {slots('right-icon') || <Icon name={this.rightIcon} />}
+            {slots('right-icon') || (
+              <Icon name={this.rightIcon} classPrefix={this.iconPrefix} />
+            )}
           </div>
         );
       }