diff --git a/packages/button/index.less b/packages/button/index.less
index ac858bcc3..69f528f51 100644
--- a/packages/button/index.less
+++ b/packages/button/index.less
@@ -5,6 +5,7 @@
   display: inline-block;
   box-sizing: border-box;
   height: @button-default-height;
+  margin: 0;
   padding: 0;
   font-size: @button-default-font-size;
   line-height: @button-default-line-height;