diff --git a/app/controllers/student_work_controller.rb b/app/controllers/student_work_controller.rb
index dd178a1ce..10431f01a 100644
--- a/app/controllers/student_work_controller.rb
+++ b/app/controllers/student_work_controller.rb
@@ -390,7 +390,7 @@ class StudentWorkController < ApplicationController
         student_in_group = '(' + group_students.map{|user| user.id}.join(',')  + ')'
       end
       #开放作品 || 老师 || 超级管理员 || 禁用匿评&&作业截止&&已提交作品 显示所有列表
-      if @homework.is_open == 1 || @is_teacher || User.current.admin? || (User.current.member_of_course?(@course) && @homework.anonymous_comment == 1 && Time.parse(@homework.end_time.to_s).strftime("%Y-%m-%d") < Time.now.strftime("%Y-%m-%d") && !@homework.student_works.where(:user_id => User.current.id).empty?)
+      if (@homework.is_open == 1 && @course.is_public == 1) || (@homework.is_open == 1 && @course.is_public == 0 && User.current.member_of_course?(@course)) || @is_teacher || User.current.admin? || (User.current.member_of_course?(@course) && @homework.anonymous_comment == 1 && Time.parse(@homework.end_time.to_s).strftime("%Y-%m-%d") < Time.now.strftime("%Y-%m-%d") && !@homework.student_works.where(:user_id => User.current.id).empty?)
         if @order == 'lastname'
           @stundet_works = search_homework_member @homework.student_works.select("student_works.*,student_works.work_score as score").joins(:user).where("users.id in #{student_in_group}").order("CONVERT(lastname USING gbk) COLLATE gbk_chinese_ci #{@b_sort}, login #{@b_sort}"),@name
         elsif @order == 'student_id'
@@ -456,7 +456,7 @@ class StudentWorkController < ApplicationController
 
       @student_work_count = (search_homework_member @homework.student_works.select("student_works.*,student_works.work_score as score").joins(:user).where("users.id in #{student_in_group}").order("#{@order} #{@b_sort}"),@name).count
     else
-      if @homework.is_open == 1 || @is_teacher || User.current.admin? || (User.current.member_of_course?(@course) && @homework.anonymous_comment == 1 && Time.parse(@homework.end_time.to_s).strftime("%Y-%m-%d") < Time.now.strftime("%Y-%m-%d") && !@homework.student_works.where(:user_id => User.current.id).empty?)
+      if (@homework.is_open == 1 &&@course.is_public == 1) || (@homework.is_open == 1 && @course.is_public == 0 && User.current.member_of_course?(@course)) || @is_teacher || User.current.admin? || (User.current.member_of_course?(@course) && @homework.anonymous_comment == 1 && Time.parse(@homework.end_time.to_s).strftime("%Y-%m-%d") < Time.now.strftime("%Y-%m-%d") && !@homework.student_works.where(:user_id => User.current.id).empty?)
         if @order == 'lastname'
           @stundet_works = search_homework_member @homework.student_works.select("student_works.*,student_works.work_score as score").joins(:user).order("CONVERT(lastname USING gbk) COLLATE gbk_chinese_ci #{@b_sort}, login #{@b_sort}"),@name
         elsif @order == 'student_id'
diff --git a/app/views/homework_common/_alert_open_student_works.html.erb b/app/views/homework_common/_alert_open_student_works.html.erb
index ef8fe3d08..73c7f0b47 100644
--- a/app/views/homework_common/_alert_open_student_works.html.erb
+++ b/app/views/homework_common/_alert_open_student_works.html.erb
@@ -1,10 +1,20 @@
 <div id="popbox02">
   <div class="ni_con">
-    <% if @homework.is_open == 0 %>
+    <% if @homework.is_open == 0 && @homework.course.is_public == 1 %>
         <h2>公开作品</h2>
         <p>
           本次作业的所有作品将对Trustie平台所有注册用户开放，请问是否确定公开作品？
         </p>
+    <% elsif @homework.is_open == 0 && @homework.course.is_public == 0 %>
+        <h2>公开作品</h2>
+        <p>
+          该作业是私有课程的作业，公开作品后本次作业的所有作品将对课程内的所有学生开放，请问是否确定公开作品？
+        </p>
+    <% elsif @homework.is_open == 1 && @homework.course.is_public == 0 %>
+        <h2>取消公开作品</h2>
+        <p>
+          您将取消“公开作品”的功能，该私有作业的作品将只在作业截止后对已提交作品的学生开放，请问是否确定？
+        </p>
     <% else %>
         <h2>取消公开作品</h2>
         <p>