diff --git a/.gitignore b/.gitignore
index bf2b2ed..a16a9d1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,10 @@
 package-lock.json
 node_modules/
 tmp/profile*.json
-todo/*.todo
+test/*.task
+todo/*.task
 data/*.url
 data/*.jpg
+data/*.jpeg
 data/*.png
 data/*.txt
diff --git a/bot/Bilibili.mjs b/bot/Bilibili.mjs
index 780998c..984a3bc 100644
--- a/bot/Bilibili.mjs
+++ b/bot/Bilibili.mjs
@@ -2,6 +2,7 @@ import Hero from '@ulixee/hero';
 import configs from '../config.mjs';
 import HeroBot from './HeroBot.mjs';
 import ClientLogPlugin from '../plugin/ClientLogPlugin.mjs';
+import common from '../lib/common.mjs';
 
 class Bilibili extends HeroBot {
 
@@ -57,6 +58,19 @@ class Bilibili extends HeroBot {
           }
         }
 
+        //get cover image's base64 data
+        if (typeof(data.cover) != 'undefined' && data.cover) {
+            data.cover = common.getAbsoluteUrl(data.cover);
+
+            const response = await hero.goto(data.cover);
+            const imgBuffer = await response.buffer;
+            //console.log('Cover image fetch done', imgBuffer.toString('base64'));
+            if (imgBuffer) {
+                data.cover_base64 = imgBuffer.toString('base64');
+                data.cover_type = common.getImageType(data.cover);
+            }
+        }
+
         await hero.close();
 
         data.bot = this.name;
diff --git a/bot/Douyin.mjs b/bot/Douyin.mjs
index 82e4849..85462a4 100644
--- a/bot/Douyin.mjs
+++ b/bot/Douyin.mjs
@@ -2,6 +2,7 @@ import Hero from '@ulixee/hero';
 import configs from '../config.mjs';
 import HeroBot from './HeroBot.mjs';
 import ClientLogPlugin from '../plugin/ClientLogPlugin.mjs';
+import common from '../lib/common.mjs';
 
 class Douyin extends HeroBot {
 
@@ -58,6 +59,22 @@ class Douyin extends HeroBot {
           }
         }
 
+        //get cover image's base64 data
+        if (typeof(data.cover) != 'undefined' && data.cover) {
+            data.cover = common.getAbsoluteUrl(data.cover);
+
+            const response = await hero.goto(data.cover);
+            //等待所有内容加载完成
+            const tab_img = await hero.activeTab;
+            await tab_img.waitForLoad('AllContentLoaded', {timeoutMs: configs.heroTabOptions.timeoutMs});
+            const imgBuffer = await response.buffer;
+            //console.log('Cover image fetch done', imgBuffer.toString('base64'));
+            if (imgBuffer) {
+                data.cover_base64 = imgBuffer.toString('base64');
+                data.cover_type = common.getImageType(data.cover);
+            }
+        }
+
         await hero.close();
 
         data.done = true;
diff --git a/bot/Kuaishou.mjs b/bot/Kuaishou.mjs
index 36aec49..fa3cd44 100644
--- a/bot/Kuaishou.mjs
+++ b/bot/Kuaishou.mjs
@@ -2,6 +2,7 @@ import Hero from '@ulixee/hero';
 import configs from '../config.mjs';
 import HeroBot from './HeroBot.mjs';
 import ClientLogPlugin from '../plugin/ClientLogPlugin.mjs';
+import common from '../lib/common.mjs';
 
 class Kuaishou extends HeroBot {
 
@@ -41,6 +42,19 @@ class Kuaishou extends HeroBot {
             data.cover = await elem.getAttribute('poster');
         }
 
+        //get cover image's base64 data
+        if (typeof(data.cover) != 'undefined' && data.cover) {
+            data.cover = common.getAbsoluteUrl(data.cover);
+
+            const response = await hero.goto(data.cover);
+            const imgBuffer = await response.buffer;
+            //console.log('Cover image fetch done', imgBuffer.toString('base64'));
+            if (imgBuffer) {
+                data.cover_base64 = imgBuffer.toString('base64');
+                data.cover_type = common.getImageType(data.cover);
+            }
+        }
+
         await hero.close();
 
         data.bot = this.name;
diff --git a/bot/Xigua.mjs b/bot/Xigua.mjs
index 19e3500..5536862 100644
--- a/bot/Xigua.mjs
+++ b/bot/Xigua.mjs
@@ -2,6 +2,7 @@ import Hero from '@ulixee/hero';
 import configs from '../config.mjs';
 import HeroBot from './HeroBot.mjs';
 import ClientLogPlugin from '../plugin/ClientLogPlugin.mjs';
+import common from '../lib/common.mjs';
 
 class Xigua extends HeroBot {
 
@@ -50,6 +51,19 @@ class Xigua extends HeroBot {
           }
         }
 
+        //get cover image's base64 data
+        if (typeof(data.cover) != 'undefined' && data.cover) {
+            data.cover = common.getAbsoluteUrl(data.cover);
+
+            const response = await hero.goto(data.cover);
+            const imgBuffer = await response.buffer;
+            //console.log('Cover image fetch done', imgBuffer.toString('base64'));
+            if (imgBuffer) {
+                data.cover_base64 = imgBuffer.toString('base64');
+                data.cover_type = common.getImageType(data.cover);
+            }
+        }
+
         await hero.close();
 
         data.bot = this.name;
diff --git a/lib/common.mjs b/lib/common.mjs
index 3a96960..c7ff63b 100644
--- a/lib/common.mjs
+++ b/lib/common.mjs
@@ -45,4 +45,20 @@ export default {
         return url;
     },
 
+    getImageType: function(url) {
+        let imgType = 'jpeg';
+
+        if (/\.jpe?g/ig.test(url)) {
+            imgType = 'jpeg';
+        }else if (/\.png/ig.test(url)) {
+            imgType = 'png';
+        }else if (/\.webp?/ig.test(url)) {
+            imgType = 'webp';
+        }else if (/\.gif?/ig.test(url)) {
+            imgType = 'gif';
+        }
+
+        return imgType;
+    },
+
 };
diff --git a/lib/tajian.mjs b/lib/tajian.mjs
index 7371c10..385a702 100644
--- a/lib/tajian.mjs
+++ b/lib/tajian.mjs
@@ -19,7 +19,7 @@ class TaJian {
     URL=https://microsoft.com/
   */
   async saveUrlShortcut(filename, data) {
-    console.log('TaJian try to save shortcut url', data);
+    //console.log('TaJian try to save shortcut url');
 
     try {
 
@@ -39,7 +39,7 @@ URL=${data.url}
   }
 
   async saveDescriptionFiles(filename, data) {
-    console.log('TaJian try to save description files', data);
+    //console.log('TaJian try to save description files');
 
     try {
         const dirPath = path.resolve(this.save_dir);
@@ -49,9 +49,19 @@ URL=${data.url}
         let content = data.title;
         await writeFile(filepath, content, { encoding: 'utf8' });
 
-        filepath = `${dirPath}/${filename}_cover.txt`;
-        content = data.cover;
-        await writeFile(filepath, content, { encoding: 'utf8' });
+        if (typeof(data.cover_base64) != 'undefined' && data.cover_base64) {
+            filepath = `${dirPath}/${filename}.${data.cover_type}`;
+            content = Buffer.from(data.cover_base64, "base64");                         //保存图片文件
+            await writeFile(filepath, content, { encoding: 'utf8' });
+
+            filepath = `${dirPath}/${filename}_cover.txt`;
+            content = `${filename}.${data.cover_type}`;                                 //保存图片路径
+            await writeFile(filepath, content, { encoding: 'utf8' });
+        }else {
+            filepath = `${dirPath}/${filename}_cover.txt`;
+            content = data.cover;                                                       //保存图片网址
+            await writeFile(filepath, content, { encoding: 'utf8' });
+        }
     }catch(error) {
         console.error('Save description files failed: %s', error);
         return false;
diff --git a/spider.mjs b/spider.mjs
index 93e252b..87e3363 100644
--- a/spider.mjs
+++ b/spider.mjs
@@ -56,13 +56,9 @@ import cron from 'node-cron';
 
             taskMoniter.setTaskRunning(task.id);
             const data = await bot.scrap(task.url);
-            console.log('Data got by bot', data);
+            //console.log('Data got by bot', data);
 
             if (typeof(data.done) != 'undefined' && data.done == true) {
-                if (data.cover) {
-                    data.cover = common.getAbsoluteUrl(data.cover);
-                }
-
                 if (
                     await tajian.saveUrlShortcut(task.id, data)
                     && await tajian.saveDescriptionFiles(task.id, data)