diff --git a/plugins/water_group/__init__.py b/plugins/water_group/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/plugins/water_group/config_default.py b/plugins/water_group/config_default.py
new file mode 100644
index 0000000000000000000000000000000000000000..12de51e5c4f953695a4260bbbca5af42e4718ae2
--- /dev/null
+++ b/plugins/water_group/config_default.py
@@ -0,0 +1,2 @@
+# 一句话被重复几次后会进行复读
+REPEAT_TIME_LIMIT = 3
\ No newline at end of file
diff --git a/plugins/water_group/water_group.py b/plugins/water_group/water_group.py
new file mode 100644
index 0000000000000000000000000000000000000000..9d7be6bb2cc1f6ecf54fe6d6c346a447dde7514d
--- /dev/null
+++ b/plugins/water_group/water_group.py
@@ -0,0 +1,59 @@
+from global_vars import VARS
+from cqhttp import CQHttp
+from util import print_log
+from register import message_listener
+from util import print_log
+import time
+import importlib
+import global_vars
+config = global_vars.CONFIG[__name__]
+water_last: dict = None
+water_cnt: dict = None
+
+
+def plugin():
+    return {
+        "author": "0xis",
+        "version": 1.0,
+        "description": "淼群计数器"
+    }
+
+
+def load():
+    global water_last, water_cnt
+    VARS["water_last"] = dict()
+    VARS["water_cnt"] = dict()
+    water_last = VARS["water_last"]
+    water_cnt = VARS["water_cnt"]
+
+def water_update(group, user_id):
+    now_week = time.strftime("%W")
+    if group not in water_last:
+        water_last[group] = { user_id: time.time() }
+        water_cnt[group] = { user_id: 0 }
+    elif user_id not in water_last[group]:
+        water_last[group][user_id] = time.time()
+        water_cnt[group][user_id] = 0
+    elif water_last[group][user_id] != now_week:
+        water_last[group][user_id] = now_week
+        water_cnt[group][user_id] = 0
+
+@message_listener
+def water_handler(bot: CQHttp, context, message):
+    global water_last, water_cnt
+    group = context["group_id"]
+    user_id = context["sender"]["user_id"]
+    water_update(group, user_id)
+    water_cnt[group][user_id] += 1
+
+@command(name="H2O", help="查看水群次数")
+def water_group(bot, context, args):
+    global water_last, water_cnt
+    group = context["group_id"]
+    user_id = context["sender"]["user_id"]
+    nickname = context["sender"]["nickname"]
+    water_update(group, user_id)
+    message = "%s 本周水了 %d 次群。" % (nickname, water_cnt[group][user_id])
+    bot.sent(context, message)
+
+