diff --git a/app/controllers/graduation_topics_controller.rb b/app/controllers/graduation_topics_controller.rb
index bcc947642..36f51ce6e 100644
--- a/app/controllers/graduation_topics_controller.rb
+++ b/app/controllers/graduation_topics_controller.rb
@@ -45,16 +45,6 @@ class GraduationTopicsController < ApplicationController
         end
     ## 分页参数
     @current_user = current_user
-    course_group_ids = @course.course_members.where(user_id: current_user.id, role: [1,2,3]).pluck(:course_group_id).uniq
-    #6.11 -hs
-    if course_group_ids.present?
-      if course_group_ids.include?(0)
-        course_group_ids = @course.course_groups.pluck(:id)
-      end
-    end
-
-    @group_list = CourseGroup.where(id: course_group_ids)
-
     page  = params[:page]  || 1
     limit = params[:limit] || 50
     @users_count = @student_graduation_topics.try(:count).to_i
diff --git a/app/views/graduation_topics/show.json.jbuilder b/app/views/graduation_topics/show.json.jbuilder
index 440dc776e..a75ac5240 100644
--- a/app/views/graduation_topics/show.json.jbuilder
+++ b/app/views/graduation_topics/show.json.jbuilder
@@ -7,13 +7,7 @@ json.edit_url edit_course_graduation_topic_path(@course, graduation_topic_id: @g
 json.users_count @users_count
 json.course_identity @current_user.course_identity(@course)
 json.user_selected_topic @graduation_topic.user_status(current_user.id)
-
-json.group_list do
-  json.array! @group_list do |group|
-    json.course_group_id group.id
-    json.group_name group.name
-  end
-end
+json.group_list @course.teacher_group(current_user.id)
 
 # 列表数据
 json.users_list do