diff --git a/addons/shopro/library/ccblife/CcbOrderService.php b/addons/shopro/library/ccblife/CcbOrderService.php
index 58dcde4..538cb18 100644
--- a/addons/shopro/library/ccblife/CcbOrderService.php
+++ b/addons/shopro/library/ccblife/CcbOrderService.php
@@ -243,6 +243,13 @@ class CcbOrderService
     public function queryOrder($orderSn, $startTime = null, $endTime = null, $page = 1, $txType = '0', $txnStatus = '00')
     {
         try {
+            // 构建商户信息参数（根据建行文档A3341TP03要求）
+            $additionalParams = [
+                'MERCHANTID' => $this->config['merchant_id'],
+                'POSID' => $this->config['pos_id'],
+                'BRANCHID' => $this->config['branch_id']
+            ];
+
             // 调用建行API查询订单（使用新接口）
             $response = $this->httpClient->queryOrder(
                 $orderSn,
@@ -250,7 +257,8 @@ class CcbOrderService
                 $endTime,
                 $page,
                 $txType,
-                $txnStatus
+                $txnStatus,
+                $additionalParams  // 传递商户信息
             );
 
             return [