diff --git a/src/nav-bar/index.less b/src/nav-bar/index.less
index 8fb25bc7f..582a0a82a 100644
--- a/src/nav-bar/index.less
+++ b/src/nav-bar/index.less
@@ -3,8 +3,10 @@
 .van-nav-bar {
   position: relative;
   z-index: @nav-bar-z-index;
+  display: flex;
+  align-items: center;
   height: @nav-bar-height;
-  line-height: @nav-bar-height;
+  line-height: 1.5;
   text-align: center;
   background-color: @nav-bar-background-color;
   user-select: none;