diff --git a/README.md b/README.md
index 0d6b53c..3045376 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@
   * ~免费抽奖~
   * 关注用户
   * 关注栏目
+  * 关注品牌
   * 限时累计活动
 
 ## 使用方法
diff --git a/bot.js b/bot.js
index 7df0929..5e6e154 100644
--- a/bot.js
+++ b/bot.js
@@ -47,7 +47,7 @@ const signFormData = (data) => {
   };
 
   const keys = Object.keys(newData).filter(key => newData[key] !== '').sort();
-  const signData = keys.map(key => `${key}=${newData[key]}`).join('&');
+  const signData = keys.map(key => `${key}=${String(newData[key]).replace(/\s+/, '')}`).join('&');
   const sign = crypto.createHash('md5').update(`${signData}&key=${SIGN_KEY}`).digest('hex').toUpperCase();
 
   return {
diff --git a/smzdm_task.js b/smzdm_task.js
index b26885a..2e344ad 100644
--- a/smzdm_task.js
+++ b/smzdm_task.js
@@ -90,6 +90,15 @@ class SmzdmTaskBot extends SmzdmBot {
           $.log('等候 5 秒');
           await $.wait(5000);
         }
+        // 关注品牌
+        else if (task.task_event_type == 'interactive.follow.brand') {
+          const { isSuccess } = await this.doFollowBrandTask(task);
+
+          notifyMsg += `${isSuccess ? '🟢' : '❌'}完成[${task.task_name}]任务${isSuccess ? '成功' : '失败！请查看日志'}\n`;
+
+          $.log('等候 5 秒');
+          await $.wait(5000);
+        }
         // 收藏任务
         else if (task.task_event_type == 'interactive.favorite') {
           const { isSuccess } = await this.doFavoriteTask(task);
@@ -308,6 +317,52 @@ class SmzdmTaskBot extends SmzdmBot {
     return await this.receiveReward(task.task_id);
   }
 
+  // 执行关注品牌任务（先取关，再关注，最后取关）
+  async doFollowBrandTask(task) {
+    $.log(`开始任务: ${task.task_name}`);
+
+    // 获取品牌信息
+    const brandDetail = await this.getBrandDetail(task.task_redirect_url.link_val);
+
+    if (!brandDetail.id) {
+      return {
+        isSuccess: false
+      };
+    }
+
+    $.log('等候 3 秒');
+    await $.wait(3000);
+
+    await this.followBrand({
+      method: 'dingyue_lanmu_del',
+      keywordId: brandDetail.id,
+      keyword: brandDetail.title
+    });
+
+    $.log('等候 3 秒');
+    await $.wait(3000);
+
+    await this.followBrand({
+      method: 'dingyue_lanmu_add',
+      keywordId: brandDetail.id,
+      keyword: brandDetail.title
+    });
+
+    $.log('等候 3 秒');
+    await $.wait(3000);
+
+    await this.followBrand({
+      method: 'dingyue_lanmu_del',
+      keywordId: brandDetail.id,
+      keyword: brandDetail.title
+    });
+
+    $.log('延迟 5 秒领取奖励');
+    await $.wait(5000);
+
+    return await this.receiveReward(task.task_id);
+  }
+
   // 执行抽奖任务
   async doCrowdTask(task) {
     $.log(`开始任务: ${task.task_name}`);
@@ -959,6 +1014,66 @@ class SmzdmTaskBot extends SmzdmBot {
 
     return JSON.stringify({...defaultObj, ...obj});
   }
+
+  // 关注品牌
+  async followBrand({keywordId, keyword, method}) {
+    const touchstone = this.getTouchstoneEvent({
+      event_value: {
+        cid: '44',
+        is_detail: true,
+        aid: String(keywordId)
+      },
+      sourceMode: '百科_品牌详情页',
+      sourcePage: `Android/其他/品牌详情页/${keyword}/${keywordId}/`,
+      upperLevel_url: '个人中心/赚奖励/'
+    });
+
+    const { isSuccess, response } = await requestApi(`https://dingyue-api.smzdm.com/dy/util/api/user_action`, {
+      method: 'post',
+      headers: this.getHeaders(),
+      data: {
+        action: method,
+        params: JSON.stringify({
+          keyword: keywordId,
+          keyword_id: keywordId,
+          type: 'brand'
+        }),
+        refer: `Android/其他/品牌详情页/${keyword}/${keywordId}/`,
+        touchstone_event: touchstone
+      }
+    });
+
+    if (isSuccess) {
+      $.log(`${method} 关注成功: ${keyword}`);
+    }
+    else {
+      $.log(`${method} 关注失败！${response}`);
+    }
+
+    return {
+      isSuccess,
+      response
+    };
+  }
+
+  // 获取品牌信息
+  async getBrandDetail(id) {
+    const { isSuccess, data, response } = await requestApi('https://brand-api.smzdm.com/brand/brand_basic', {
+      headers: this.getHeaders(),
+      data: {
+        brand_id: id
+      }
+    });
+
+    if (isSuccess) {
+      return data.data;
+    }
+    else {
+      $.log(`获取品牌信息失败！${response}`);
+
+      return {};
+    }
+  }
 }
 
 !(async () => {