diff --git a/components/button/demo/icon.md b/components/button/demo/icon.md
index d80aee23e9..8574a67c93 100644
--- a/components/button/demo/icon.md
+++ b/components/button/demo/icon.md
@@ -2,42 +2,44 @@
 
 - order: 4
 
+图标一般放在文字前面，也可以单独存在。
+
 ---
 
 ````html
 <button class="ant-btn ant-btn-primary ant-btn-circle ant-btn-lg">
-  <span class="anticon anticon-search"></span>
+  <i class="anticon anticon-search"></i>
 </button>
 <button class="ant-btn ant-btn-primary ant-btn-lg">
-  <span class="anticon anticon-search"></span>
-  <span>大按钮</span>
+  <i class="anticon anticon-search"></i>
+  大按钮
 </button>
-  
+
 <button class="ant-btn ant-btn-primary ant-btn-circle">
-  <span class="anticon anticon-search"></span>
+  <i class="anticon anticon-search"></i>
 </button>
 <button class="ant-btn ant-btn-primary">
-  <span class="anticon anticon-search"></span>
-  <span>中按钮</span>
+  <i class="anticon anticon-search"></i>
+  中按钮
 </button>
-  
+
 <button class="ant-btn ant-btn-primary ant-btn-circle ant-btn-sm">
-  <span class="anticon anticon-search"></span>
+  <i class="anticon anticon-search"></i>
 </button>
 <button class="ant-btn ant-btn-primary ant-btn-sm">
-  <span class="anticon anticon-search"></span>
-  <span>小按钮</span>
+  <i class="anticon anticon-search"></i>
+  小按钮
 </button>
 
 <p></p>
 
 <button class="ant-btn ant-btn-ghost ant-btn-circle-outline ant-btn-lg">
-  <span class="anticon anticon-search"></span>
+  <i class="anticon anticon-search"></i>
 </button>
 <button class="ant-btn ant-btn-ghost ant-btn-circle-outline">
-  <span class="anticon anticon-search"></span>
+  <i class="anticon anticon-search"></i>
 </button>
 <button class="ant-btn ant-btn-circle-outline ant-btn-sm">
-  <span class="anticon anticon-search"></span>
+  <i class="anticon anticon-search"></i>
 </button>
-````
\ No newline at end of file
+````