diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 6fb0bf27c..6bff6c074 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -61,13 +61,13 @@ class CoursesController < ApplicationController
     @user = current_user
     # 根据分类查询课堂(全部，我的，最新，最热)
     @order = params[:order].present? ? params[:order] : "all"
-    @courses = current_laboratory.courses
+    @courses = current_laboratory.main_site? ? Course.not_deleted : current_laboratory.courses.not_deleted
     if @order == "visits"
       order_str = "courses.id = 1309 DESC, courses.visits DESC"
-      @courses = @courses.where(is_delete: 0, is_hidden: 0)
+      @courses = @courses.where(is_hidden: 0)
     else
       order_str = "courses.id = 1309 DESC, courses.homepage_show DESC, courses.created_at desc"
-      @courses = @courses.where(is_delete: 0, is_hidden: 0, is_end: 0)
+      @courses = @courses.where(is_hidden: 0, is_end: 0)
     end
 
     # 金课未开课的不显示在首页