diff --git a/src/components/PageHeader/index.less b/src/components/PageHeader/index.less
index a5e95670..da947d09 100644
--- a/src/components/PageHeader/index.less
+++ b/src/components/PageHeader/index.less
@@ -25,8 +25,10 @@
     margin: 0 0 0 -8px;
 
     :global {
+      // 1px 可以让选中效果显示完成
       .ant-tabs-bar {
-        border-bottom: @border-width-base @border-style-base @border-color-split;
+        border-bottom: none;
+        margin-bottom: 1px;
       }
     }
   }