diff --git a/components/switch/style/index.less b/components/switch/style/index.less
index 5af5de326d..2963032505 100644
--- a/components/switch/style/index.less
+++ b/components/switch/style/index.less
@@ -22,7 +22,7 @@
 
   &-inner {
     color: #fff;
-    font-size: @font-size-base;
+    font-size: @font-size-sm;
     margin-left: 24px;
     margin-right: 6px;
     display: block;