diff --git a/lib/tasks/sync_evaluate.rake b/lib/tasks/sync_evaluate.rake
index 831792a90..67117f613 100644
--- a/lib/tasks/sync_evaluate.rake
+++ b/lib/tasks/sync_evaluate.rake
@@ -2,12 +2,13 @@ desc "同步学院或者单位评测数"
 
 namespace :sync_evaluate do
   task outpus_count: :environment do
-    School.find_each do |school|
+    School.find_in_batches(batch_size: 50) do |school|
       Parallel.each_with_index(school, in_processes: 5) do |s|
         puts "school_id:#{s.id}"
         evaluate_count = Game.find_by_sql("select sum(g.evaluate_count) as e_count from games g, user_extensions ue where
                         g.user_id = ue.user_id and ue.school_id = '#{s.id}'").first.try(:e_count)
 
+        puts "evaluate_count: #{evaluate_count}"
         report =  SchoolReport.find_or_initialize_by(school_id: s.id)
         report.school_name = s.name
         report.shixun_evaluate_count = evaluate_count