diff --git a/app/controllers/ec_courses_controller.rb b/app/controllers/ec_courses_controller.rb
index bc7383b3..cdf039b3 100644
--- a/app/controllers/ec_courses_controller.rb
+++ b/app/controllers/ec_courses_controller.rb
@@ -850,6 +850,7 @@ class EcCoursesController < ApplicationController
       logger.info("###############ec_graduation_subitem: #{ec_graduation_subitem.id}")
       # 课程体系
       ec_course_support = ec_graduation_subitem.ec_course_supports.where(:ec_course_id => @ec_course.id).first
+      ec_course_support = EcCourseSupport.where(:ec_course_id => @ec_course.id).first if ec_course_support.blank?
       logger.info("###############################ec_course_support:#{ec_course_support.try(:id)}")
       weight = ec_course_support.try(:weigths) || 0
       # position