diff --git a/app/process/GameWebSocketServer.php b/app/process/GameWebSocketServer.php
index 26bcde6..32e0b06 100644
--- a/app/process/GameWebSocketServer.php
+++ b/app/process/GameWebSocketServer.php
@@ -194,7 +194,10 @@ class GameWebSocketServer
             GameWebSocketDispatcher::sendDirect($connection, 'ws.subscribed', [
                 'topics' => $finalTopics,
             ], 'subscribed');
-            self::pushAdminTestOddsPreview($connection, $finalTopics);
+            // 演示帧仅供后台 admin 联调；mobile 用户订阅后不应收到样例玩家的 bet.accepted / wallet.changed
+            if (GameWebSocketSubscriptionRegistry::isAdmin($connection->id)) {
+                self::pushAdminTestOddsPreview($connection, $finalTopics);
+            }
             return;
         }