diff --git a/app/controllers/shixuns_controller.rb b/app/controllers/shixuns_controller.rb
index 3a4592b2f..b91ce9580 100644
--- a/app/controllers/shixuns_controller.rb
+++ b/app/controllers/shixuns_controller.rb
@@ -203,6 +203,13 @@ class ShixunsController < ApplicationController
 						new_challenge.user_id = User.current.id
 						new_challenge.shixun_id = @new_shixun.id
 						new_challenge.save!
+						# 同步参考答案
+						challenge.challenge_answers.each do |answer|
+							new_answer = Challenge.new
+							new_answer = answer.attributes.dup.except("id","challenge_id")
+							new_answer.challenge_id = new_challenge.id
+							new_answer.save!
+						end
 						if challenge.st == 0  # 评测题
 							# 同步测试集
 							if challenge.test_sets.present?