diff --git a/components/dropdown/dropdown.jsx b/components/dropdown/dropdown.jsx
index 8cb236f885..8c0dfe0b31 100644
--- a/components/dropdown/dropdown.jsx
+++ b/components/dropdown/dropdown.jsx
@@ -6,6 +6,8 @@ export default React.createClass({
     return {
       transitionName: 'slide-up',
       prefixCls: 'ant-dropdown',
+      mouseEnterDelay: 0.15,
+      mouseLeaveDelay: 0.1,
     };
   },
   render() {