diff --git a/components/menu/style/index.less b/components/menu/style/index.less
index acbfdef49e..795a35dc7b 100644
--- a/components/menu/style/index.less
+++ b/components/menu/style/index.less
@@ -160,7 +160,7 @@
     .@{iconfont-css-prefix} {
       min-width: 14px;
       margin-right: 10px;
-      font-size: @font-size-base;
+      font-size: @menu-icon-size;
       transition: font-size 0.15s @ease-out, margin 0.3s @ease-in-out;
       + span {
         opacity: 1;
@@ -418,7 +418,7 @@
       }
       .@{iconfont-css-prefix} {
         margin: 0;
-        font-size: 16px;
+        font-size: @menu-icon-size-lg;
         line-height: @menu-item-height;
         + span {
           display: inline-block;
diff --git a/components/style/themes/default.less b/components/style/themes/default.less
index f9c51a11be..963e4a8c50 100644
--- a/components/style/themes/default.less
+++ b/components/style/themes/default.less
@@ -383,6 +383,8 @@
 @menu-item-active-bg: @item-active-bg;
 @menu-item-active-border-width: 3px;
 @menu-item-group-title-color: @text-color-secondary;
+@menu-icon-size: @font-size-base;
+@menu-icon-size-lg: @font-size-lg;
 
 // dark theme
 @menu-dark-color: @text-color-secondary-dark;