diff --git a/bot/Douyin.mjs b/bot/Douyin.mjs
index 4f17d82..be231c3 100644
--- a/bot/Douyin.mjs
+++ b/bot/Douyin.mjs
@@ -71,7 +71,6 @@ class Douyin extends HeroBot {
                     await hero.close();
                     //删除profile文件后重试
                     await this.deleteProfile();
-                    this.ua = 'pc';     //切换到pc模式重试
                     return false;
                 }
 
@@ -116,8 +115,6 @@ class Douyin extends HeroBot {
 
             //删除profile文件后重试
             await this.deleteProfile();
-            //切换模式
-            this.ua = this.ua == 'mob' ? 'pc' : 'mob';
         }
 
         return data;
diff --git a/bot/HeroBot.mjs b/bot/HeroBot.mjs
index 7e7005a..49a8ac0 100644
--- a/bot/HeroBot.mjs
+++ b/bot/HeroBot.mjs
@@ -26,6 +26,10 @@ class HeroBot {
         this.ua = 'pc';
     }
 
+    setMode(mode) {
+        this.ua = mode == 'mob' ? 'mob' : 'pc';
+    }
+
     //返回profile对象
     async init(botName) {
         if (typeof(this.supportedBots[botName]) == 'undefined') {
diff --git a/config.mjs b/config.mjs
index 47123b9..9e5cdf0 100644
--- a/config.mjs
+++ b/config.mjs
@@ -27,6 +27,7 @@ let configs = {
 
     //bot相关配置
     cloud_server: '',
+    default_mode: 'pc',
     userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36',
     viewport: {
         width: 1440,
diff --git a/spider.mjs b/spider.mjs
index d80a30f..67f8a08 100644
--- a/spider.mjs
+++ b/spider.mjs
@@ -49,6 +49,7 @@ import path from 'node:path';
     //spider run
     let spider_is_running = false,
         last_run_time = 0;
+    let last_douyin_mode = 'pc';
     const task_check_time = 20;     //每 20 秒抓取一次
     const task_auto_run = cron.schedule(`*/${task_check_time} * * * * *`, async () =>  {
         const current_time = common.getTimestampInSeconds();
@@ -70,6 +71,7 @@ import path from 'node:path';
         switch (botName) {
             case 'douyin':
                 bot = new Douyin(heroCloudServer);
+                bot.setMode(last_douyin_mode);
                 break;
             case 'kuaishou':
                 bot = new Kuaishou(heroCloudServer);
@@ -90,6 +92,11 @@ import path from 'node:path';
             const data = await bot.scrap(task.url);
             //console.log('Data got by bot', data);
 
+            //为抖音切换模式
+            if (bot.name == 'douyin') {
+                last_douyin_mode = last_douyin_mode == 'pc' ? 'mob' : 'pc';
+            }
+
             if (typeof(data.done) != 'undefined' && data.done == true) {
                 task.data = data;        //把抓取到的数据保存到任务里
                 taskMoniter.updateTask(task.id, task);
diff --git a/test/scrap_test.mjs b/test/scrap_test.mjs
index a9c798c..531958d 100644
--- a/test/scrap_test.mjs
+++ b/test/scrap_test.mjs
@@ -31,6 +31,10 @@ import getConfigs from '../config.mjs';
             console.log('Hero配置', configs);
 
             const douyin = new Douyin(heroCloudServer);
+
+            //使用手机模式，默认为pc
+            douyin.setMode('mob');
+
             console.log('请求中: %s ...', url);
             data = await douyin.scrap(url);
             console.log("解析结果:\n%s", JSON.stringify(data));