diff --git a/app/controllers/wechats_controller.rb b/app/controllers/wechats_controller.rb
index 6e6cf1c63..41653faf9 100644
--- a/app/controllers/wechats_controller.rb
+++ b/app/controllers/wechats_controller.rb
@@ -107,6 +107,7 @@ class WechatsController < ActionController::Base
   end
 
   on :event, with: 'unsubscribe' do |request|
+    unBind(request)
     request.reply.success # user can not receive this message
   end
 
@@ -274,12 +275,17 @@ class WechatsController < ActionController::Base
     end
   end
 
+  def unBind(request)
+    uw = user_binded?(request[:FromUserName])
+    uw.try(:subscribe!)
+  end
+
   def sendBind(request)
     tmpurl = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=#{Wechat.config.appid}&redirect_uri=#{ROOT_URL+'/wechat/user_activities'}&response_type=code&scope=snsapi_base&state=login&connect_redirect=1#wechat_redirect"
     logger.info "tmpurl!!!!!!!!!!!!!!"
     logger.info tmpurl
     news = (1..1).each_with_object([]) { |n, memo| memo << { title: '绑定登录', content: "欢迎使用Trustie创新实践服务平台！
-在这里您可以随时了解您的课程和项目动态，随时点赞和回复。
+在这里您可以随时了解您的课程和项目动态，随时点赞和回复。交作业、代码提交等更多功能，请前往 www.trustie.net
 我们将会与微信不断结合，为您提供更有价值的服务。
 
 您还未绑定确实的用户，请先绑定，谢谢！" } }
diff --git a/app/models/user_wechat.rb b/app/models/user_wechat.rb
index c63411ab3..71221a3d1 100644
--- a/app/models/user_wechat.rb
+++ b/app/models/user_wechat.rb
@@ -24,4 +24,9 @@ class UserWechat < ActiveRecord::Base
     BlogComment.where(author_id: old_user).update_all(author_id: u.id)
     UserActivity.where(user_id: old_user).update_all(user_id: u.id)
   end
+
+
+  def unsubscribe!
+    self.delete
+  end
 end