diff --git a/commands.py b/commands.py
index 6dd17d513142bc7def419272edde399b8131f359..a0b6b30a9c0429ac8090ce2513674a199186f245 100644
--- a/commands.py
+++ b/commands.py
@@ -214,3 +214,9 @@ def renderlatex(bot: CQHttp, context=None, args=None)->None:
         ))
     except Exception as ex:
         bot.send(context, "渲染Latex时发生错误:\n{}".format(ex))
+
+@command(name="签到", help="群签到")
+def attendance(bot: CQHttp, context=None, args=None):
+    import sign_up
+    bot.send(context,sign_up.get_reply(context))
+    
diff --git a/config_default.py b/config_default.py
index 8b36d8f111b852369f83420b27d4ccbbf84f62eb..b52861bdc7c40403cddef4356543c371defeef76 100644
--- a/config_default.py
+++ b/config_default.py
@@ -38,6 +38,9 @@ OUTPUT_LENGTH_LIMIT = 200
 EXECUTE_TIME_LIMIT = 2000
 # 负责执行的Docker镜像名
 DOCKER_IMAGE = ""
+# 签到数据文件路径
+ATTENDANCE_DATA = "./bot-data/"
+
 
 SAMPLE = {
     "718459861": [
diff --git a/sign_up.py b/sign_up.py
new file mode 100644
index 0000000000000000000000000000000000000000..5a2f54df83f7cd35bafccfe7d53869e9fa5eb86e
--- /dev/null
+++ b/sign_up.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+from global_vars import config
+def get_reply(context):
+    data = {}
+    file_path=config.ATTENDANCE_DATA+"group_data.json"
+    import os,json,random
+    
+    # 文件不存在，建立文件夹
+    if not os.path.exists(config.ATTENDANCE_DATA):
+        os.makedirs(config.ATTENDANCE_DATA)
+
+    # 读取json文件
+    if os.access(file_path, os.F_OK):
+        with open(file_path,"r") as f:
+            data=json.load(f)
+    
+    group_id = str(context['group_id'])
+    sender = context['sender']
+    user_id= str(sender['user_id'])
+    nickname = sender['nickname']
+
+    # 群不在字典中
+    if group_id not in data.keys():
+        data[group_id] = {}
+
+    # 发件人不在群字典中
+    if user_id not in data[group_id].keys():
+        data[group_id][user_id]={
+            "rating" : 0,
+            "times_all" : 0,
+            "times_month" : 0,
+            "date" : "0001-01-01"
+        }
+
+    from datetime import datetime,date
+    today = datetime.strptime(str(date.today()),'%Y-%m-%d')
+    last_day = datetime.strptime(data[group_id][user_id]['date'],'%Y-%m-%d')
+    
+    
+    #比较上次签到时间，今日已经签到
+    if last_day >= today : 
+        return "%s今天已经签过到了！\n当前积分：%d\n本月签到次数：%d\n累计群签到次数：%d" % (
+            nickname,data[group_id][user_id]['rating'],data[group_id][user_id]['times_month'],data[group_id][user_id]['times_all'])
+
+    # 清零上个月
+    if last_day.month!=today.month or last_day.year!=today.year:
+        data[group_id][user_id]['times_month'] = 0
+        
+    #签到
+    delta=random.randint(10,50-datetime.now().hour)
+    data[group_id][user_id]['rating'] += delta
+    data[group_id][user_id]['times_month'] += 1
+    data[group_id][user_id]['times_all'] += 1
+    data[group_id][user_id]['date'] = str(date.today())
+
+    with open(file_path,"w") as f:
+        json.dump(data,f)
+    
+    return "给%s签到成功了！\n积分增加：%d\n当前积分：%d\n本月签到次数：%d\n累计群签到次数：%d" % (
+        nickname,delta,data[group_id][user_id]['rating'],data[group_id][user_id]['times_month'],data[group_id][user_id]['times_all'])