diff --git a/src/platforms/app-plus/service/framework/tab-bar.js b/src/platforms/app-plus/service/framework/tab-bar.js
index 6d17ec148bafc843fc7dd73990593ef20ad0acd7..5ab9cac78fba009b931904d458a294d9e38ceba4 100644
--- a/src/platforms/app-plus/service/framework/tab-bar.js
+++ b/src/platforms/app-plus/service/framework/tab-bar.js
@@ -113,7 +113,7 @@ export default {
     })
   },
   indexOf (page) {
-    const itemLength = config.list.length
+    const itemLength = config && config.list && config.list.length
     if (itemLength) {
       for (let i = 0; i < itemLength; i++) {
         if (