diff --git a/utils/nakamaManager.js b/utils/nakamaManager.js
index fbc2895..8beac15 100644
--- a/utils/nakamaManager.js
+++ b/utils/nakamaManager.js
@@ -77,9 +77,13 @@ class NakamaManager {
     async authenticateWithGameToken(gameToken) {
         this.gameToken = gameToken;
 
-        // 生成唯一的 custom ID
-        const customId = `game_${Date.now()}_${Math.random().toString(36).substring(7)}`;
-        console.log('[Nakama] Authenticating with Custom ID:', customId);
+        // 获取或生成持久化的 custom ID
+        let customId = uni.getStorageSync('nakama_custom_id');
+        if (!customId) {
+            customId = `game_${Date.now()}_${Math.random().toString(36).substring(7)}`;
+            uni.setStorageSync('nakama_custom_id', customId);
+        }
+        console.log('[Nakama] Authenticating with Persistent ID:', customId);
 
         // HTTP 认证请求
         const scheme = this.useSSL ? 'https://' : 'http://';