diff --git a/packages/tab/src/tabs.vue b/packages/tab/src/tabs.vue
index e56545632..f22481d6a 100644
--- a/packages/tab/src/tabs.vue
+++ b/packages/tab/src/tabs.vue
@@ -57,7 +57,7 @@
        * `type`为`line`时，tab下方的横线的样式
        */
       navBarStyle() {
-        if (!this.isReady || type !== 'line') return;
+        if (!this.isReady || this.type !== 'line') return;
 
         const tabKey = this.curActive;
         const elem = this.$refs.tabkey[tabKey];