diff --git a/src/styles/components/tree.less b/src/styles/components/tree.less
index fd315047..79fad3ca 100644
--- a/src/styles/components/tree.less
+++ b/src/styles/components/tree.less
@@ -5,7 +5,7 @@
         list-style: none;
         margin: 0;
         padding: 0;
-        font-size: @font-size-small;
+        font-size: @font-size-base;
         &.@{dropdown-prefix-cls}-menu{
             padding: 0;
         }