diff --git a/app/services/homework_service.rb b/app/services/homework_service.rb
index f9be6f79d..d22c62a5a 100644
--- a/app/services/homework_service.rb
+++ b/app/services/homework_service.rb
@@ -20,7 +20,7 @@ class HomeworkService
     many_times = course.homeworks.index(@bid) + 1
     name = @bid.name
     homework_count = @bid.homeworks.count  #已提交的作业数量
-    student_questions_count = @bid.commit.nil? ? 0 : @bid.commit
+    student_questions_count =  @bid.journals_for_messages.where('m_parent_id IS NULL').count
     description = @bid.description
     #if is_course_teacher(User.current, course) && @bid.open_anonymous_evaluation == 1 && @bid.homeworks.count >= 2
     state = @bid.comment_status
@@ -282,7 +282,7 @@ class HomeworkService
         many_times = course.homeworks.index(@bid) + 1
         name = @bid.name
         homework_count = @bid.homeworks.count  #已提交的作业数量
-        student_questions_count = @bid.commit.nil? ? 0 : @bid.commit
+        student_questions_count = @bid.journals_for_messages.where('m_parent_id IS NULL').count
         description = @bid.description
                                                #if is_course_teacher(User.current, course) && @bid.open_anonymous_evaluation == 1 && @bid.homeworks.count >= 2
         state = @bid.comment_status