diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 93eba89d8..e0844ab4c 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -799,6 +799,8 @@ class CoursesController < ApplicationController
           uid_logger_error(e.message)
           normal_status(-1, "无法完成导入，原因：文件内容无法读取")
         end
+      else
+        normal_status(-1, "只支持xls文件的导入")
       end
     end
   end