diff --git a/app/Service/v3/CCBPayment.php b/app/Service/v3/CCBPayment.php
index 6fdcded..c9cd67a 100644
--- a/app/Service/v3/CCBPayment.php
+++ b/app/Service/v3/CCBPayment.php
@@ -427,4 +427,28 @@ class CCBPayment
         return $this->apiRequest($uri, $params);
     }
 
+    /**
+     * 10.1 订单信息查询
+     * @param string $Main_Ordr_No 主订单编号
+     * @param string $Py_Trn_No 支付流水号，主订单号与支付流水号必输其一
+     * @return array
+     */
+    public function orderInfQuery(string $Main_Ordr_No, string $Py_Trn_No = '')
+    {
+        $uri = '/online/direct/OrderInfQuery';
+
+        $params = [
+            'Ittparty_Stm_Id'  => $this->ittpartyStmId,
+            'Py_Chnl_Cd'       => $this->pyChnlCd,
+            'Ittparty_Tms'     => $this->getTimestamp(),
+            'Ittparty_Jrnl_No' => $this->genSerialNumber(),
+            'Mkt_Id'           => $this->mktId,
+            'Main_Ordr_No'     => $Main_Ordr_No,
+            'Py_Trn_No'        => $Py_Trn_No,
+            'Vno'              => '4',
+        ];
+
+        return $this->apiRequest($uri, $params);
+    }
+
 }
\ No newline at end of file