diff --git a/metadata/genshin.py b/metadata/genshin.py
index 253d651..2745e77 100644
--- a/metadata/genshin.py
+++ b/metadata/genshin.py
@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 import functools
-from typing import Any, Generic, ItemsView, Iterator, KeysView, TypeVar, Optional
+from typing import Any, Generic, ItemsView, Iterator, KeysView, TypeVar, Optional, ValuesView
 
 import ujson as json
 
@@ -22,7 +22,7 @@ __all__ = [
     "game_id_to_role_id",
     "Data",
     "weapon_to_game_id",
-    "avatar_to_game_id"
+    "avatar_to_game_id",
 ]
 
 K = TypeVar("K")
@@ -78,6 +78,9 @@ class Data(dict, Generic[K, V]):
     def keys(self) -> KeysView[K, V]:
         return self.data.keys()
 
+    def values(self) -> ValuesView[K, V]:
+        return self.data.values()
+
     def items(self) -> ItemsView[K, V]:
         return self.data.items()
 
@@ -105,13 +108,9 @@ def game_id_to_role_id(gid: str) -> int | None:
 
 @functools.lru_cache()
 def weapon_to_game_id(name: str) -> Optional[int]:
-    return next(
-        (int(key) for key, value in WEAPON_DATA.items() if value['name'] == name), None
-    )
+    return next((int(key) for key, value in WEAPON_DATA.items() if value["name"] == name), None)
 
 
 @functools.lru_cache()
 def avatar_to_game_id(name: str) -> Optional[int]:
-    return next(
-        (int(key) for key, value in AVATAR_DATA.items() if value['name'] == name), None
-    )
+    return next((int(key) for key, value in AVATAR_DATA.items() if value["name"] == name), None)
diff --git a/plugins/genshin/birthday.py b/plugins/genshin/birthday.py
new file mode 100644
index 0000000..908a202
--- /dev/null
+++ b/plugins/genshin/birthday.py
@@ -0,0 +1,77 @@
+import re
+from datetime import datetime
+
+from telegram import Update
+from telegram.ext import CommandHandler, CallbackContext
+from telegram.ext import filters
+
+from core.baseplugin import BasePlugin
+from core.plugin import Plugin, handler
+from metadata.genshin import AVATAR_DATA
+from metadata.shortname import roleToId, roleToName
+from utils.bot import get_all_args
+from utils.decorators.error import error_callable
+from utils.decorators.restricts import restricts
+from utils.log import logger
+
+
+class BirthdayPlugin(Plugin, BasePlugin):
+    """Birthday."""
+
+    def __init__(self):
+        """Load Data."""
+        self.birthday_list = {}
+        for value in AVATAR_DATA.values():
+            key = "_".join([str(i) for i in value["birthday"]])
+            data = self.birthday_list.get(key, [])
+            data.append(value["name"])
+            self.birthday_list.update({key: data})
+
+    @handler(CommandHandler, command="birthday", block=False)
+    @restricts()
+    @error_callable
+    async def command_start(self, update: Update, context: CallbackContext) -> None:
+        message = update.effective_message
+        user = update.effective_user
+        key = datetime.now().strftime("%m_%d")
+        args = get_all_args(context)
+        if len(args) >= 1:
+            msg = args[0]
+            logger.info(f"用户 {user.full_name}[{user.id}] 查询角色生日命令请求 || 参数 {msg}")
+            if re.match(r"\d{1,2}.\d{1,2}", msg):
+                try:
+                    key = re.findall(r"\d+", msg)[0] + "_" + re.findall(r"\d+", msg)[1]
+                    day_list = self.birthday_list.get(key, [])
+                    date = re.findall(r"\d+", msg)[0] + "月" + re.findall(r"\d+", msg)[1] + "日"
+                    text = f"{date} 是 {'、'.join(day_list)} 的生日哦~" if day_list else f"{date} 没有角色过生日哦~"
+                except IndexError:
+                    text = "请输入正确的日期格式，如1-1，或输入正确的角色名称。"
+                reply_message = await message.reply_text(text)
+                if filters.ChatType.GROUPS.filter(reply_message):
+                    self._add_delete_message_job(context, message.chat_id, message.message_id)
+                    self._add_delete_message_job(context, reply_message.chat_id, reply_message.message_id)
+            else:
+                try:
+                    name = roleToName(msg)
+                    aid = str(roleToId(msg))
+                    birthday = AVATAR_DATA[aid]["birthday"]
+                    text = f"{name} 的生日是 {birthday[0]}月{birthday[1]}日 哦~"
+                    reply_message = await message.reply_text(text)
+                    if filters.ChatType.GROUPS.filter(reply_message):
+                        self._add_delete_message_job(context, message.chat_id, message.message_id)
+                        self._add_delete_message_job(context, reply_message.chat_id, reply_message.message_id)
+                except KeyError:
+                    reply_message = await message.reply_text(
+                        "请输入正确的日期格式，如1-1，或输入正确的角色名称。"
+                    )
+                    if filters.ChatType.GROUPS.filter(reply_message):
+                        self._add_delete_message_job(context, message.chat_id, message.message_id)
+                        self._add_delete_message_job(context, reply_message.chat_id, reply_message.message_id)
+        else:
+            logger.info(f"用户 {user.full_name}[{user.id}] 查询今日角色生日列表")
+            today_list = self.birthday_list.get(key, [])
+            text = f"今天是 {'、'.join(today_list)} 的生日哦~" if today_list else "今天没有角色过生日哦~"
+            reply_message = await message.reply_text(text)
+            if filters.ChatType.GROUPS.filter(reply_message):
+                self._add_delete_message_job(context, message.chat_id, message.message_id)
+                self._add_delete_message_job(context, reply_message.chat_id, reply_message.message_id)
diff --git a/resources/bot/help/help.html b/resources/bot/help/help.html
index e347cfd..516a28b 100644
--- a/resources/bot/help/help.html
+++ b/resources/bot/help/help.html
@@ -133,6 +133,10 @@
                     <div class="command-name">/hilichurls</div>
                     <div class="command-description">丘丘语字典</div>
                 </div>
+                <div class="command">
+                    <div class="command-name">/birthday</div>
+                    <div class="command-description">角色生日</div>
+                </div>
              </div>
         </div>