diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 591494141..4a26b3c02 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -906,15 +906,17 @@ class CoursesController < ApplicationController
         # 邀请码验证
         return normal_status(-1, "邀请码不能为空") if params[:invite_code].blank?
         invite_code = params[:invite_code]
-        course = Course.find_by(invite_code: invite_code, is_delete: 0, invite_code_halt: 0, is_end: 0)
+        course = Course.find_by(invite_code: invite_code, is_delete: 0, invite_code_halt: 0)
         course_group = CourseGroup.find_by(invite_code: invite_code)
         if course.blank?
           return normal_status(-1, "邀请码无效") if course_group.blank?
 
-          course = Course.find_by(id: course_group.course_id, is_delete: 0, invite_code_halt: 0, is_end: 0)
+          course = Course.find_by(id: course_group.course_id, is_delete: 0, invite_code_halt: 0)
           return normal_status(-1, "邀请码无效") if course.blank?
         end
 
+        return normal_status(-1, "课堂已结束，无法加入") if course.is_end
+
         # 实名认证和职业认证的身份判断
         return normal_status(-1, "该课堂要求成员完成实名和职业认证") if course.authentication &&
             course.professional_certification && (!current_user.authentication || !current_user.professional_certification)