diff --git a/components/menu/style/index.less b/components/menu/style/index.less
index 38f8f8fde..10f0cf3b0 100644
--- a/components/menu/style/index.less
+++ b/components/menu/style/index.less
@@ -196,7 +196,7 @@
   }
 
   .effect() {
-    animation-duration: 3s;
+    animation-duration: .3s;
     animation-fill-mode: both;
     transform-origin: 0 0;
   }