diff --git a/package/component/src/component/buttonGroup/index.less b/package/component/src/component/buttonGroup/index.less
index 278681a8..3db5a8d6 100644
--- a/package/component/src/component/buttonGroup/index.less
+++ b/package/component/src/component/buttonGroup/index.less
@@ -14,8 +14,15 @@
   border-radius: 0;
 }
 
-.layui-btn-group .layui-btn:not(:first-child) {
-  border-left: none;
+.layui-btn-group .layui-btn:not(:last-child) {
+  border-right: none !important;
+}
+
+.layui-btn-group .layui-btn.layui-btn-primary:not(:first-child),
+.layui-btn-group .layui-btn.layui-btn-normal:not(:first-child),
+.layui-btn-group .layui-btn.layui-btn-warm:not(:first-child),
+.layui-btn-group .layui-btn.layui-btn-danger:not(:first-child) {
+  border-left: 1px solid rgba(255, 255, 255, .5)
 }
 
 .layui-btn-group .layui-btn:first-child {
diff --git a/package/document-component/src/document/zh-CN/components/button.md b/package/document-component/src/document/zh-CN/components/button.md
index 0a9b7046..5fb24b0e 100644
--- a/package/document-component/src/document/zh-CN/components/button.md
+++ b/package/document-component/src/document/zh-CN/components/button.md
@@ -187,6 +187,11 @@ export default {
       <lay-button type="primary">默认按钮</lay-button>
       <lay-button type="primary">默认按钮</lay-button>
     </lay-button-group>
+    <lay-button-group>
+      <lay-button border="green" border-style="dashed">默认按钮</lay-button>
+      <lay-button border="green" border-style="dashed">默认按钮</lay-button>
+      <lay-button border="green" border-style="dashed">默认按钮</lay-button>
+    </lay-button-group>
   </div>
 </template>