diff --git a/docs/markdown/v2-progress-tracking.md b/docs/markdown/v2-progress-tracking.md
index c5bd3f484..033dc8dcf 100644
--- a/docs/markdown/v2-progress-tracking.md
+++ b/docs/markdown/v2-progress-tracking.md
@@ -76,11 +76,6 @@
 
 - 支持`Number`类型的`size`属性
 
-### Popup
-
-- 新增`click`事件
-- 新增`duration`属性
-
 ### Loading
 
 - 新增`default`插槽
@@ -97,6 +92,15 @@
 - 新增`left-icon`插槽
 - 新增`right-icon`插槽
 
+### Popup
+
+- 新增`click`事件
+- 新增`duration`属性
+
+### Radio
+
+- 新增`icon-size`属性
+
 ### SubmitBar
 
 - 新增`tip-icon`属性
diff --git a/packages/radio/en-US.md b/packages/radio/en-US.md
index 106331f36..55b4b264a 100644
--- a/packages/radio/en-US.md
+++ b/packages/radio/en-US.md
@@ -95,6 +95,7 @@ export default {
 | name | Radio name | `any` | - |
 | shape | Can be set to `square` | `String` | `round` |
 | disabled | Whether to disable radio | `Boolean` | `false` |
+| icon-size | Icon size | `String | Number` | `20px` |
 | label-disabled | Whether to disable label click | `Boolean` | `false` |
 | label-position | Can be set to `left` | `String` | `right` |
 | checked-color | Checked color | `String` | `#1989fa` | - |
diff --git a/packages/radio/index.less b/packages/radio/index.less
index 6db58e16c..935fd12d1 100644
--- a/packages/radio/index.less
+++ b/packages/radio/index.less
@@ -8,19 +8,21 @@
   &__label {
     display: inline-block;
     vertical-align: middle;
-    line-height: @radio-size;
   }
 
   &__icon {
-    height: @radio-size;
+    height: 1em;
+    line-height: 1em;
+    font-size: @radio-size;
 
     .van-icon {
-      font-size: 14px;
+      display: block;
+      width: 1.25em;
+      height: 1.25em;
+      font-size: .8em;
       color: transparent;
       text-align: center;
       line-height: inherit;
-      width: @radio-size;
-      height: @radio-size;
       box-sizing: border-box;
       border: 1px solid @radio-border-color;
       transition: @radio-transition-duration;
@@ -56,6 +58,7 @@
 
   &__label {
     color: @radio-label-color;
+    line-height: @radio-size;
     margin-left: @radio-label-margin;
 
     &--left {
diff --git a/packages/radio/zh-CN.md b/packages/radio/zh-CN.md
index 8857b730e..e3d3a006f 100644
--- a/packages/radio/zh-CN.md
+++ b/packages/radio/zh-CN.md
@@ -99,6 +99,7 @@ export default {
 | name | 标识符 | 任意类型 | - | - |
 | shape | 形状，可选值为 `square` | `String` | `round` | 1.6.0 |
 | disabled | 是否为禁用状态 | `Boolean` | `false` | - |
+| icon-size | 图标大小，默认单位为`px` | `String | Number` | `20px` | 2.0.0 |
 | label-disabled | 是否禁用文本内容点击 | `Boolean` | `false` | 1.1.13 |
 | label-position | 文本位置，可选值为 `left` | `String` | `right` | 1.1.13 |
 | checked-color | 选中状态颜色 | `String` | `#1989fa` | 1.4.5 |