diff --git a/app/controllers/student_works_controller.rb b/app/controllers/student_works_controller.rb
index 59da73703..8c2c4fda1 100644
--- a/app/controllers/student_works_controller.rb
+++ b/app/controllers/student_works_controller.rb
@@ -360,6 +360,7 @@ class StudentWorksController < ApplicationController
   # 给作品评分
   def add_score
     tip_exception("该学生的分数已经过调整，不能再评阅") if @work.ultimate_score
+    tip_exception("学生匿评时分数为必填")  if params[:score].blank? && @user_course_identity == Course::STUDENT
     tip_exception("分数和评语不能都为空") if params[:score].blank? && params[:comment].blank?
     tip_exception("分数不能超过0-100") if params[:score] && (params[:score].to_f < 0 || params[:score].to_f > 100)