diff --git a/app/controllers/bind_users_controller.rb b/app/controllers/bind_users_controller.rb
index 91b7c42fd..cbe0a8c13 100644
--- a/app/controllers/bind_users_controller.rb
+++ b/app/controllers/bind_users_controller.rb
@@ -8,7 +8,8 @@ class BindUsersController < ApplicationController
     tip_exception '系统错误' if session[:unionid].blank?
 
     bind_user = User.try_to_login(params[:username], params[:password])
-    tip_exception '用户名或者密码错误' if bind_user.check_password?(params[:password].to_s)
+    return render_error('用户名或者密码错误') if bind_user.blank?
+    tip_exception '用户名或者密码错误' unless bind_user.check_password?(params[:password].to_s)
     tip_exception '该账号已被绑定，请更换其他账号进行绑定' if bind_user.bind_open_user?(params[:type].to_s)
 
     OpenUsers::Wechat.create!(user: bind_user, uid: session[:unionid])