diff --git a/app/models/course.rb b/app/models/course.rb
index d36d5d2c5..06090f236 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -258,7 +258,7 @@ class Course < ApplicationRecord
 
   # 是否具有分班权限,返回分班的id
   def group_course_power(user_id)
-    teacher_course_groups.where(user_id: user_id).pluck(:id)
+    teacher_course_groups.where(user_id: user_id).pluck(:course_group_id)
   end
 
   #课程动态公共表记录
diff --git a/app/models/graduation_task.rb b/app/models/graduation_task.rb
index 030978817..e247f2b6e 100644
--- a/app/models/graduation_task.rb
+++ b/app/models/graduation_task.rb
@@ -100,15 +100,15 @@ class GraduationTask < ApplicationRecord
             SELECT count(distinct graduation_work_id) cnt FROM graduation_work_scores WHERE reviewer_role IN(1,2) AND graduation_work_id
               IN(SELECT id FROM graduation_works WHERE graduation_task_id = #{self.id} AND user_id
                  IN(SELECT user_id FROM course_members WHERE role = 4 AND course_group_id
-                    IN(SELECT course_group_id FROM teacher_course_groups WHERE id IN(#{course_group_ids.join(",")}))
+                    IN(#{course_group_ids.join(",")})
                    )
                 )
           }
         else
           %Q{
             SELECT COUNT(distinct graduation_work_id) cnt FROM graduation_works gw
-              JOIN graduation_work_scores gwc ON gw.graduation_task_id = gwc.graduation_task_id
-            WHERE reviewer_role IN(1,2) AND gwc.graduation_task_id = #{self.id}
+              JOIN graduation_work_scores gwc ON gw.id = gwc.graduation_work_id
+            WHERE reviewer_role IN(1,2) AND gw.graduation_task_id = #{self.id}
           }
         end
     GraduationWorkScore.find_by_sql(sql).first.try(:cnt).to_i
@@ -127,7 +127,7 @@ class GraduationTask < ApplicationRecord
       sql = %Q{
                 SELECT count(*) cnt FROM graduation_works gw WHERE work_status = 0 AND gw.graduation_task_id = #{self.id} AND gw.user_id
                   IN( SELECT user_id FROM course_members WHERE role = 4 AND course_group_id
-                    IN( SELECT course_group_id FROM teacher_course_groups WHERE id not IN(#{course_group_ids.join(",")}) )
+                    IN(#{course_group_ids.join(",")})
                     )
               }
       GraduationWork.find_by_sql(sql).first.try(:cnt)
@@ -144,7 +144,7 @@ class GraduationTask < ApplicationRecord
       sql = %Q{
                 SELECT count(*) cnt FROM graduation_works gw WHERE work_status = 1 AND gw.graduation_task_id = #{self.id} AND gw.user_id
                   IN( SELECT user_id FROM course_members WHERE role = 4 AND course_group_id
-                    IN( SELECT course_group_id FROM teacher_course_groups WHERE id IN(#{course_group_ids.join(",")}) )
+                    IN(#{course_group_ids.join(",")})
                     )
               }
       GraduationWork.find_by_sql(sql).first.try(:cnt)
@@ -160,7 +160,7 @@ class GraduationTask < ApplicationRecord
       sql = %Q{
                 SELECT count(*) cnt FROM graduation_works gw WHERE work_status = 2 AND gw.graduation_task_id = #{self.id} AND gw.user_id
                   IN( SELECT user_id FROM course_members WHERE role = 4 AND course_group_id
-                    IN( SELECT course_group_id FROM teacher_course_groups WHERE id IN(#{course_group_ids.join(",")}) )
+                    IN(#{course_group_ids.join(",")})
                     )
               }
       GraduationWork.find_by_sql(sql).first.try(:cnt)
diff --git a/app/models/homework_common.rb b/app/models/homework_common.rb
index 80b92d175..335b898fb 100644
--- a/app/models/homework_common.rb
+++ b/app/models/homework_common.rb
@@ -197,7 +197,7 @@ class HomeworkCommon < ApplicationRecord
               JOIN student_works_scores sws on sws.student_work_id = sw.id WHERE
               reviewer_role IN(1,2) AND sw.id IN (SELECT id FROM student_works WHERE homework_common_id = #{self.id}
               AND user_id IN (SELECT user_id FROM course_members WHERE role = 4 AND course_group_id
-                    IN (SELECT course_group_id FROM teacher_course_groups WHERE id IN(#{course_group_ids.join(",")}))
+                    IN (#{course_group_ids.join(",")})
                    )
                 )
           }