diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 8f024c1c6..0ee83e839 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -238,7 +238,9 @@ module CoursesHelper
 
   # 获取课堂的资源数
   def get_attachment_count(course, category_id)
-    category_id.to_i == 0 ? course.attachments.size : course.attachments.where(course_second_category_id: category_id).size
+    identity = current_user.course_identity(course)
+    attachments = category_id.to_i == 0 ? course.attachments : course.attachments.where(course_second_category_id: category_id)
+    identity > Course::ASSISTANT_PROFESSOR ? attachments.published.size : attachments.size
   end
 
   # 获取课堂的视频数
diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index 3ff9a6a90..1a9b50c3b 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -24,6 +24,7 @@ class Attachment < ApplicationRecord
   scope :simple_columns,                -> { select(:id, :filename, :filesize, :created_on, :cloud_url, :author_id, :content_type, :container_type, :container_id) }
   scope :search_by_container,           -> (ids) {where(container_id: ids)}
   scope :unified_setting, -> {where("unified_setting = ? ", 1)}
+  scope :published, -> {where(is_publish: 1)}
 
   validates_length_of :description, maximum: 100, message: "不能超过100个字符"