diff --git a/src/core/helpers/protocol/tab-bar.js b/src/core/helpers/protocol/tab-bar.js
index 77da45a763b96e4b1f264e3d9a810f2b243651b9..0573d60395e08d0508ce89cabe16db7b26f5889e 100644
--- a/src/core/helpers/protocol/tab-bar.js
+++ b/src/core/helpers/protocol/tab-bar.js
@@ -2,33 +2,12 @@ import {
   getLen
 } from 'uni-shared'
 
-function beforeValidate (params) {
-  let isTabBar = false
-  const pages = getCurrentPages()
-  if (pages.length) {
-    if (pages[pages.length - 1].$page.meta.isTabBar) {
-      isTabBar = true
-    }
-  } else if (getApp().$children[0].hasTabBar) {
-    isTabBar = true
-  }
-  if (!isTabBar) {
-    return 'not TabBar page'
-  }
-}
-
 const indexValidator = {
   type: Number,
-  required: true,
-  validator (index, params) {
-    if (index >= __uniConfig.tabBar.list.length) {
-      return 'tabbar item not found'
-    }
-  }
+  required: true
 }
 
 export const setTabBarItem = {
-  beforeValidate,
   index: indexValidator,
   text: {
     type: String
@@ -42,7 +21,6 @@ export const setTabBarItem = {
 }
 
 export const setTabBarStyle = {
-  beforeValidate,
   color: {
     type: String
   },
@@ -63,7 +41,6 @@ export const setTabBarStyle = {
 }
 
 export const hideTabBar = {
-  beforeValidate,
   animation: {
     type: Boolean,
     default: false
@@ -71,7 +48,6 @@ export const hideTabBar = {
 }
 
 export const showTabBar = {
-  beforeValidate,
   animation: {
     type: Boolean,
     default: false
@@ -79,22 +55,18 @@ export const showTabBar = {
 }
 
 export const hideTabBarRedDot = {
-  beforeValidate,
   index: indexValidator
 }
 
 export const showTabBarRedDot = {
-  beforeValidate,
   index: indexValidator
 }
 
 export const removeTabBarBadge = {
-  beforeValidate,
   index: indexValidator
 }
 
 export const setTabBarBadge = {
-  beforeValidate,
   index: indexValidator,
   text: {
     type: String,
diff --git a/src/core/service/api/tab-bar.js b/src/core/service/api/tab-bar.js
index 202328ecd1ad249793b7804a1bcea9629c5333d3..88446f052f9357ebb9abe11f64c9b56395cb4234 100644
--- a/src/core/service/api/tab-bar.js
+++ b/src/core/service/api/tab-bar.js
@@ -10,11 +10,32 @@ const setTabBarBadgeProps = ['badge', 'redDot']
 
 function setTabBar (type, args = {}) {
   const app = getApp()
+
   if (app) {
+    let isTabBar = false
+    const pages = getCurrentPages()
+    if (pages.length) {
+      if (pages[pages.length - 1].$page.meta.isTabBar) {
+        isTabBar = true
+      }
+    } else if (app.$children[0].hasTabBar) {
+      isTabBar = true
+    }
+    if (!isTabBar) {
+      return {
+        errMsg: `${type}:fail not TabBar page`
+      }
+    }
+
     const {
       index
     } = args
     const tabBar = app.$children[0].tabBar
+    if (index >= __uniConfig.tabBar.list.length) {
+      return {
+        errMsg: `${type}:fail tabbar item not found`
+      }
+    }
     switch (type) {
       case 'showTabBar':
         app.$children[0].hideTabBar = false
@@ -80,4 +101,4 @@ export function removeTabBarBadge (args) {
 
 export function setTabBarBadge (args) {
   return setTabBar('setTabBarBadge', args)
-}
+}