diff --git a/app/controllers/weapps/attendances_controller.rb b/app/controllers/weapps/attendances_controller.rb
index 2ec4180a1..da22aa300 100644
--- a/app/controllers/weapps/attendances_controller.rb
+++ b/app/controllers/weapps/attendances_controller.rb
@@ -37,8 +37,14 @@ class Weapps::AttendancesController < ApplicationController
       @all_member_attendances = @all_member_attendances.joins(:course_member).where(course_members: {course_group_id: params[:group_id]})
     end
 
-    @history_attendances = all_attendances.order("id asc")
-    @all_history_count = @history_attendances.size
+    all_attendances = all_attendances.order("attendance_date desc, start_time desc")
+
+    data = AttendanceStatisticsService.call all_attendances, @all_member_attendances
+    @all_history_count = data[:all_history_count]
+    @history_attendances = data[:history_attendances]
+    @avg_normal_rate = data[:avg_normal_rate]
+    @avg_absence_rate = data[:avg_absence_rate]
+    @avg_leave_rate = data[:avg_leave_rate]
   end
 
   def student_attendances
diff --git a/app/views/weapps/attendances/index.json.jbuilder b/app/views/weapps/attendances/index.json.jbuilder
index da8be3c8d..4326880ef 100644
--- a/app/views/weapps/attendances/index.json.jbuilder
+++ b/app/views/weapps/attendances/index.json.jbuilder
@@ -5,25 +5,12 @@ json.current_attendance @current_attendance do |attendance|
   json.end_time attendance.end_time.strftime("%H:%M")
 end
 
-all_normal_rate = []
-all_absence_rate = []
-all_leave_rate = []
 json.history_attendances @history_attendances.each_with_index.to_a do |attendance, index|
-  normal_count = history_member_count(@all_member_attendances, "NORMAL", attendance.id)
-  absence_count = history_member_count(@all_member_attendances, "ABSENCE", attendance.id)
-  leave_count = history_member_count(@all_member_attendances, "LEAVE", attendance.id)
-  all_count = @all_member_attendances.select{|member_attendance| member_attendance.course_attendance_id == attendance.id}.size
-
-  json.index index + 1
-  json.normal_rate cal_rate(normal_count, all_count)
-  all_normal_rate << cal_rate(normal_count, all_count)
-  json.absence_rate cal_rate(absence_count, all_count)
-  all_absence_rate << cal_rate(absence_count, all_count)
-  json.leave_rate cal_rate(leave_count, all_count)
-  all_leave_rate << cal_rate(leave_count, all_count)
+  json.(attendance, :name, :attendance_date, :start_time, :end_time, :normal_rate, :absence_rate, :leave_rate)
+  json.index "签到#{index + 1}"
 end
 
 json.all_history_count @all_history_count
-json.avg_normal_rate @all_history_count == 0 ? 0 : all_normal_rate.sum / @all_history_count
-json.avg_absence_rate @all_history_count == 0 ? 0 : all_absence_rate.sum / @all_history_count
-json.avg_leave_rate @all_history_count == 0 ? 0 : all_leave_rate.sum / @all_history_count
+json.avg_normal_rate @avg_normal_rate
+json.avg_absence_rate @avg_absence_rate
+json.avg_leave_rate @avg_leave_rate