diff --git a/extend/WeChatDeviceApi/Adapters/ChuKeBao/Adapter.php b/extend/WeChatDeviceApi/Adapters/ChuKeBao/Adapter.php
index ed08ca8..a0b85f2 100644
--- a/extend/WeChatDeviceApi/Adapters/ChuKeBao/Adapter.php
+++ b/extend/WeChatDeviceApi/Adapters/ChuKeBao/Adapter.php
@@ -1661,17 +1661,49 @@ class Adapter implements WeChatServiceInterface
 
 
         $offset = 0;
-        $limit = 2000;
+        // 降低单批规模，减少长事务导致的锁冲突窗口
+        $limit = 500;
         $usleepTime = 50000;
+        $maxRetry = 5;
+        // 在会话级别降级隔离级别，避免 SELECT 阶段持有共享锁导致与业务更新互斥
+        Db::execute("SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED");
         do {
-            $affected = Db::execute($sql, [$offset, $limit]);
-            $offset += $limit;
+            $retry = 0;
+            while (true) {
+                try {
+                    $affected = Db::execute($sql, [$offset, $limit]);
+                    break;
+                } catch (\Throwable $e) {
+                    $retry++;
+                    if (!$this->isDeadlockOrLockWaitTimeout($e) || $retry >= $maxRetry) {
+                        throw $e;
+                    }
+                    // 指数退避，给冲突事务让路
+                    usleep(100000 * $retry);
+                    Log::warning("syncTrafficSourceGroup 批处理发生锁冲突，正在重试: offset={$offset}, retry={$retry}, error=" . $e->getMessage());
+                }
+            }
+
             if ($affected > 0) {
+                $offset += $limit;
                 usleep($usleepTime);
             }
         } while ($affected > 0);
     }
 
+    /**
+     * 判断是否为死锁或锁等待超时
+     */
+    protected function isDeadlockOrLockWaitTimeout(\Throwable $e): bool
+    {
+        $msg = strtolower($e->getMessage());
+        return strpos($msg, 'deadlock found') !== false
+            || strpos($msg, 'lock wait timeout exceeded') !== false
+            || strpos($msg, '1213') !== false
+            || strpos($msg, '1205') !== false
+            || strpos($msg, '40001') !== false;
+    }
+
     // ============================================================================
     // V2 流量池数据同步方法
     // ============================================================================