diff --git a/config.mjs b/config.mjs
index 3bb39b9..88c1318 100644
--- a/config.mjs
+++ b/config.mjs
@@ -4,7 +4,9 @@ let configs = {
     //自动任务相关配置
     task_list_dir: 'todo/',       //待抓取任务文件保存目录
     data_save_dir: 'data/',       //抓取完成数据保存目录，文件格式：.url快捷方式，详细说明见：https://filesite.io
+    task_log_dir: 'log/',         //新任务日志保存目录，方便跟踪和分析任务
 
+    task_do_timeout: 180,         //任务处理超时时长，单位：秒
     max_fail_retry: 5,            //任务失败最多重试次数
 
     //HeroUnion英雄联盟对接配置
diff --git a/lib/common.mjs b/lib/common.mjs
index be04798..dc5809a 100644
--- a/lib/common.mjs
+++ b/lib/common.mjs
@@ -1,6 +1,5 @@
 //公用方法
-import { rm as removeFile } from 'node:fs/promises';
-import { readdir, readFile } from 'node:fs/promises';
+import { readdir, readFile, rm as removeFile, appendFile } from 'node:fs/promises';
 import path from 'node:path';
 
 export default {
@@ -91,4 +90,20 @@ export default {
         return configs;
     }
 
+    //保存log到指定文件
+    async saveLog(filePath, content) {
+        let saved = false;
+
+        try {
+            let saveRes = await appendFile(filePath, content);
+            if (saveRes == undefined) {
+                saved = true;
+            }
+        } catch (err) {
+            console.error(`Log save to %s failed: %s`, filePath, err.message);
+        }
+
+        return saved;
+    }
+
 };
diff --git a/lib/taskMoniter.mjs b/lib/taskMoniter.mjs
index b1f8bf9..330cd3a 100644
--- a/lib/taskMoniter.mjs
+++ b/lib/taskMoniter.mjs
@@ -89,6 +89,7 @@ class TaskMoniter {
         }
 
         this.tasks[task_id].status = this.statusCode.running;
+        this.tasks[task_id].updated = common.getTimestampInSeconds();
         this.taskStatus[this.statusCode.running] ++;
         this.taskStatus[this.statusCode.waiting] --;
 
@@ -100,9 +101,10 @@ class TaskMoniter {
             return false;
         }
 
+        this.tasks[task_id].status = this.statusCode.waiting;
+        this.tasks[task_id].updated = common.getTimestampInSeconds();
         this.taskStatus[this.tasks[task_id].status] --;
         this.taskStatus[this.statusCode.waiting] ++;
-        this.tasks[task_id].status = this.statusCode.waiting;
 
         return true;
     }
@@ -113,6 +115,7 @@ class TaskMoniter {
         }
 
         this.tasks[task_id].status = this.statusCode.done;
+        this.tasks[task_id].updated = common.getTimestampInSeconds();
         this.taskStatus[this.statusCode.done] ++;
         this.taskStatus[this.statusCode.running] --;
 
@@ -131,6 +134,7 @@ class TaskMoniter {
         }
 
         this.tasks[task_id].status = this.statusCode.failed;
+        this.tasks[task_id].updated = common.getTimestampInSeconds();
         this.taskStatus[this.statusCode.failed] ++;
         this.taskStatus[this.statusCode.running] --;
 
@@ -143,6 +147,7 @@ class TaskMoniter {
         try {
             task.id = this.getTaskId(filename);
             task.status = this.statusCode.waiting;
+            task.created = common.getTimestampInSeconds();
 
             task.url = await readFile(filepath, { encoding: 'utf8' });
             if (task.url) {
diff --git a/log/Readme.md b/log/Readme.md
new file mode 100644
index 0000000..094d746
--- /dev/null
+++ b/log/Readme.md
@@ -0,0 +1,5 @@
+
+# log dir
+
+Save log of new task.
+
diff --git a/spider.mjs b/spider.mjs
index af1a77e..76b6c80 100644
--- a/spider.mjs
+++ b/spider.mjs
@@ -3,6 +3,7 @@
  * 负责监听任务目录里的新任务，并自动抓取数据保存到数据目录。
  * 增加失败任务的重试机制
  * 增加失败任务上报
+ * 增加任务处理超时
  */
 import getConfigs from './config.mjs';
 import common from './lib/common.mjs';
@@ -16,6 +17,7 @@ import Xigua from './bot/Xigua.mjs';
 import Bilibili from './bot/Bilibili.mjs';
 
 import cron from 'node-cron';
+import path from 'node:path';
 
 (async () => {
     //设置configs为全局变量
@@ -45,14 +47,23 @@ import cron from 'node-cron';
     const heroCloudServer = typeof(configs.cloud_server) != 'undefined' && configs.cloud_server ? configs.cloud_server : '';
 
     //spider run
-    let spider_is_running = false;
+    let spider_is_running = false,
+        last_run_time = 0;
     const task_check_time = 20;     //每 20 秒抓取一次
     const task_auto_run = cron.schedule(`*/${task_check_time} * * * * *`, async () =>  {
-        if (spider_is_running == true) {return false;}      //避免同时执行多个爬虫任务
+        const current_time = common.getTimestampInSeconds();
+
+        //避免同时执行多个爬虫任务，并检查上个任务执行是否超时
+        if (spider_is_running == true && current_time - last_run_time < configs.task_do_timeout) {
+            return false;
+        }
 
         const task = taskMoniter.getNewTask();
         if (!task) {return false;}
 
+        let logFile = path.resolve(configs.task_log_dir) + `/tasks_${heroUnionConfig.name}.log`;
+        await common.saveLog(logFile, JSON.stringify(task) + "\n");
+
         const botName = common.getBotName(task.url);
         console.log('New task %s handle by bot %s.', task.url, botName);
         let bot = null;
@@ -73,6 +84,7 @@ import cron from 'node-cron';
 
         if (bot) {
             spider_is_running = true;
+            last_run_time = common.getTimestampInSeconds();
 
             taskMoniter.setTaskRunning(task.id);
             const data = await bot.scrap(task.url);