diff --git a/app/controllers/homework_commons_controller.rb b/app/controllers/homework_commons_controller.rb
index 4abada488..59f745fb0 100644
--- a/app/controllers/homework_commons_controller.rb
+++ b/app/controllers/homework_commons_controller.rb
@@ -121,23 +121,26 @@ class HomeworkCommonsController < ApplicationController
         @work = @homework.user_work(current_user.id)
 
         # 学生已提交作品且补交（提交）已截止、作品公开、非匿评阶段
-        if @work.work_status > 0 && @homework.work_public &&
+        if @work&.work_status.to_i > 0 && @homework.work_public &&
             ((!@homework.anonymous_comment && @homework.end_or_late) || @homework_detail_manual.comment_status > 4)
           @student_works = student_works.where("user_id != #{@work.id}")
 
           # 匿评、申诉阶段只能看到分配给自己的匿评作品
-        elsif @work.work_status > 0 && @homework.anonymous_comment && @homework_detail_manual.comment_status > 2
+        elsif @work&.work_status.to_i > 0 && @homework.anonymous_comment && @homework_detail_manual.comment_status > 2
           @is_evaluation = true
           @student_works = student_works.joins(:student_works_evaluation_distributions).where(
               "student_works_evaluation_distributions.user_id = #{@current_user.id}")
         else
           @student_works = []
         end
+        @score_open = @homework.score_open && @work&.work_status.to_i > 0
       elsif @user_course_identity < Course::STUDENT
         @student_works = @homework.teacher_works(@member)
         @all_member_count = @student_works.size
+        @score_open = true
       elsif @user_course_identity > Course::STUDENT && @homework.work_public
         @student_works = student_works
+        @score_open = false
       else
         @student_works = []
       end
diff --git a/app/views/homework_commons/works_list.json.jbuilder b/app/views/homework_commons/works_list.json.jbuilder
index 716b12190..60441909b 100644
--- a/app/views/homework_commons/works_list.json.jbuilder
+++ b/app/views/homework_commons/works_list.json.jbuilder
@@ -33,19 +33,19 @@ elsif @user_course_identity == Course::STUDENT
 
     json.late_penalty @work.late_penalty if @homework.allow_late
     json.cost_time @work.myshixun.try(:total_cost_time)
-    json.work_score work_score_format(@work.work_score, true, @homework.score_open)
-    json.final_score work_score_format(@work.final_score, true, @homework.score_open)
-    json.efficiency work_score_format(@work.efficiency, true, @homework.score_open)
-    json.eff_score work_score_format(@work.eff_score, true, @homework.score_open)
+    json.work_score work_score_format(@work.work_score, true, @score_open)
+    json.final_score work_score_format(@work.final_score, true, @score_open)
+    json.efficiency work_score_format(@work.efficiency, true, @score_open)
+    json.eff_score work_score_format(@work.eff_score, true, @score_open)
     json.complete_count @work.myshixun.try(:passed_count)
   else
     json.(@work, :id, :work_status, :update_time, :ultimate_score)
 
-    json.work_score work_score_format(@work.work_score, true, @homework.score_open)
-    json.final_score work_score_format(@work.final_score, true, @homework.score_open)
-    json.teacher_score work_score_format(@work.teacher_score, true, @homework.score_open)
-    json.student_score work_score_format(@work.student_score, true, @homework.score_open)
-    json.teaching_asistant_score work_score_format(@work.teaching_asistant_score, true, @homework.score_open)
+    json.work_score work_score_format(@work.work_score, true, @score_open)
+    json.final_score work_score_format(@work.final_score, true, @score_open)
+    json.teacher_score work_score_format(@work.teacher_score, true, @score_open)
+    json.student_score work_score_format(@work.student_score, true, @score_open)
+    json.teaching_asistant_score work_score_format(@work.teaching_asistant_score, true, @score_open)
 
     json.ta_comment_count @work.ta_comment_count
 
@@ -84,10 +84,10 @@ if @homework.homework_type == "practice"
     json.(work, :id, :work_status, :update_time, :ultimate_score)
 
     json.late_penalty work.late_penalty if @homework.allow_late
-    json.work_score work_score_format(work.work_score, @current_user == work.user, @homework.score_open)
-    json.final_score work_score_format(work.final_score, @current_user == work.user, @homework.score_open)
-    json.efficiency work_score_format(work.efficiency, @current_user == work.user, @homework.score_open)
-    json.eff_score work_score_format(work.eff_score, @current_user == work.user, @homework.score_open)
+    json.work_score work_score_format(work.work_score, @current_user == work.user, @score_open)
+    json.final_score work_score_format(work.final_score, @current_user == work.user, @score_open)
+    json.efficiency work_score_format(work.efficiency, @current_user == work.user, @score_open)
+    json.eff_score work_score_format(work.eff_score, @current_user == work.user, @score_open)
 
     json.cost_time work.myshixun.try(:total_cost_time)
     json.complete_count work.myshixun.try(:passed_count)
@@ -117,11 +117,11 @@ elsif @homework.homework_type == "group" || @homework.homework_type == "normal"
           :teaching_asistant_score, :ultimate_score)
 
       json.late_penalty work.late_penalty if @homework.allow_late
-      json.work_score work_score_format(work.work_score, @current_user == work.user, @homework.score_open)
-      json.final_score work_score_format(work.final_score, @current_user == work.user, @homework.score_open)
-      json.teacher_score work_score_format(work.teacher_score, @current_user == work.user, @homework.score_open)
-      json.student_score work_score_format(work.student_score, @current_user == work.user, @homework.score_open)
-      json.teaching_asistant_score work_score_format(work.teaching_asistant_score, @current_user == work.user, @homework.score_open)
+      json.work_score work_score_format(work.work_score, @current_user == work.user, @score_open)
+      json.final_score work_score_format(work.final_score, @current_user == work.user, @score_open)
+      json.teacher_score work_score_format(work.teacher_score, @current_user == work.user, @score_open)
+      json.student_score work_score_format(work.student_score, @current_user == work.user, @score_open)
+      json.teaching_asistant_score work_score_format(work.teaching_asistant_score, @current_user == work.user, @score_open)
 
       # 助教评分次数
       json.ta_comment_count work.ta_comment_count