diff --git a/xiaomusic/config.py b/xiaomusic/config.py
index bcda511..b92fe3f 100644
--- a/xiaomusic/config.py
+++ b/xiaomusic/config.py
@@ -56,7 +56,8 @@ class Config:
     music_path: str = os.getenv("XIAOMUSIC_MUSIC_PATH", "music")
     conf_path: str = os.getenv("XIAOMUSIC_CONF_PATH", None)
     hostname: str = os.getenv("XIAOMUSIC_HOSTNAME", "192.168.2.5")
-    port: int = int(os.getenv("XIAOMUSIC_PORT", "8090"))
+    port: int = int(os.getenv("XIAOMUSIC_PORT", "8090"))  # 监听端口
+    public_port: int = int(os.getenv("XIAOMUSIC_PUBLIC_PORT", 0))  # 歌曲访问端口
     proxy: str | None = os.getenv("XIAOMUSIC_PROXY", None)
     search_prefix: str = os.getenv(
         "XIAOMUSIC_SEARCH", "bilisearch:"
diff --git a/xiaomusic/static/setting.html b/xiaomusic/static/setting.html
index e07676a..1987603 100644
--- a/xiaomusic/static/setting.html
+++ b/xiaomusic/static/setting.html
@@ -96,6 +96,9 @@
         <option value="false">false</option>
       </select>
 
+      <label for="public_port">外网访问端口(0表示跟监听端口一致):</label>
+      <input id="public_port" type="number" value="0"></input>
+
       <label for="stop_tts_msg">停止提示音:</label>
       <input id="stop_tts_msg" type="text" value="收到,再见"></input>
       <label for="keywords_playlocal">播放本地歌曲口令:</label>
diff --git a/xiaomusic/xiaomusic.py b/xiaomusic/xiaomusic.py
index 5402ef7..63da384 100644
--- a/xiaomusic/xiaomusic.py
+++ b/xiaomusic/xiaomusic.py
@@ -105,6 +105,10 @@ class XiaoMusic:
 
         self.hostname = self.config.hostname
         self.port = self.config.port
+        self.public_port = self.config.public_port
+        if self.public_port == 0:
+            self.public_port = self.port
+
         self.proxy = self.config.proxy
         self.search_prefix = self.config.search_prefix
         self.ffmpeg_location = self.config.ffmpeg_location
@@ -456,7 +460,7 @@ class XiaoMusic:
             "get_music_url local music. name:%s, filename:%s", name, filename
         )
         encoded_name = urllib.parse.quote(filename)
-        return f"http://{self.hostname}:{self.port}/{encoded_name}"
+        return f"http://{self.hostname}:{self.public_port}/{encoded_name}"
 
     # 递归获取目录下所有歌曲,生成随机播放列表
     def _gen_all_music_list(self):