diff --git a/packages/button/en-US.md b/packages/button/en-US.md
index 85ff41a57..03a0edaad 100644
--- a/packages/button/en-US.md
+++ b/packages/button/en-US.md
@@ -71,6 +71,7 @@ Use `tag` prop to custom button tag
 | disabled | Whether to disable button | `Boolean` | `false` |
 | loading | Whether show loading status | `Boolean` | `false` |
 | block | Whether to set display block | `Boolean` | `false` |
+| square | Whether to be square button | `Boolean` | `false` |
 
 ### Event
 
diff --git a/packages/button/index.vue b/packages/button/index.vue
index d787a912d..6fe9f6841 100644
--- a/packages/button/index.vue
+++ b/packages/button/index.vue
@@ -9,6 +9,7 @@
       {
         block,
         plain,
+        square,
         loading,
         disabled,
         unclickable: disabled || loading,
@@ -34,6 +35,7 @@ export default create({
     text: String,
     block: Boolean,
     plain: Boolean,
+    square: Boolean,
     loading: Boolean,
     disabled: Boolean,
     nativeType: String,
diff --git a/packages/button/zh-CN.md b/packages/button/zh-CN.md
index 9b45b7baf..ffa1b5bdf 100644
--- a/packages/button/zh-CN.md
+++ b/packages/button/zh-CN.md
@@ -76,6 +76,7 @@ Vue.use(Button);
 | disabled | 是否禁用 | `Boolean` | `false` |
 | loading | 是否显示为加载状态 | `Boolean` | `false` |
 | block | 是否为块级元素 | `Boolean` | `false` |
+| square | 是否为方形按钮 | `Boolean` | `false` |
 
 ### Event
 
diff --git a/packages/vant-css/src/button.css b/packages/vant-css/src/button.css
index 4a843ccec..d69ecc21a 100644
--- a/packages/vant-css/src/button.css
+++ b/packages/vant-css/src/button.css
@@ -143,4 +143,8 @@
     background-color: $button-disabled-background-color;
     border: 1px solid $button-disabled-border-color;
   }
+
+  &--square {
+    border-radius: 0;
+  }
 }