diff --git a/app/controllers/files_controller.rb b/app/controllers/files_controller.rb
index 362523a7d..e40c986ca 100644
--- a/app/controllers/files_controller.rb
+++ b/app/controllers/files_controller.rb
@@ -43,7 +43,7 @@ class FilesController < ApplicationController
     @attachments = @attachments.by_keywords(params[:search])
 
     if params[:no_link]
-      @attachments = @attachments.where(link: nil)
+      @attachments = @attachments.no_link
     end
 
     @attachments = @attachments.page(@page).per(@page_size)
@@ -142,7 +142,7 @@ class FilesController < ApplicationController
   end
 
   def public_with_course_and_project
-    @attachments = Attachment.publiced.simple_columns
+    @attachments = Attachment.publiced.no_link.simple_columns
                        .contains_course_and_project
                        .includes(:container, author: :user_extension)
                        .by_filename_or_user_name(params[:search])
@@ -155,7 +155,7 @@ class FilesController < ApplicationController
 
   def mine_with_course_and_project
     @current_user = current_user
-    @attachments = Attachment.mine(current_user)
+    @attachments = Attachment.mine(current_user).no_link
                        .simple_columns
                        .contains_course_and_project
                        .by_keywords(params[:search])
diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index 1a9b50c3b..001883fb6 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -25,6 +25,7 @@ class Attachment < ApplicationRecord
   scope :search_by_container,           -> (ids) {where(container_id: ids)}
   scope :unified_setting, -> {where("unified_setting = ? ", 1)}
   scope :published, -> {where(is_publish: 1)}
+  scope :no_link, -> {where(link: nil)}
 
   validates_length_of :description, maximum: 100, message: "不能超过100个字符"