diff --git a/webapp/controller/BlockChainController.class.php b/webapp/controller/BlockChainController.class.php
index efeac88f..b6cec296 100644
--- a/webapp/controller/BlockChainController.class.php
+++ b/webapp/controller/BlockChainController.class.php
@@ -310,10 +310,10 @@ class BlockChainController extends BaseAuthedController {
         BcOrder::upsert($rspObj['trans_id'], array(
             'item_id' => $itemId,
             'item_num' => $itemCount,
-            'order_type' => 1,
+            'order_type' => BcOrder::SPEC_ORDER_TYPE,
             'price' => $num,
             'ext_data' => json_encode(array(
-                'mode' => SHOP_BUY_MODE_NORMAL,
+                'mode' => BcOrder::SHOP_BUY_MODE_NORMAL,
             )),
         ));
 
diff --git a/webapp/controller/MallController.class.php b/webapp/controller/MallController.class.php
index 0f30839c..97bf2b06 100644
--- a/webapp/controller/MallController.class.php
+++ b/webapp/controller/MallController.class.php
@@ -327,10 +327,10 @@ class MallController extends BaseAuthedController {
         BcOrder::upsert($response['trans_id'], array(
             'item_id' => $item_id,
             'item_num' => $item_count,
-            'order_type' => 1,
+            'order_type' => BcOrder::SPEC_ORDER_TYPE,
             'price' => $this->Web3PriceLowFormat($goods['s_price']),
             'ext_data' => json_encode(array(
-                'mode' => MARKET_BUY_MODE_NORMAL,
+                'mode' => BcOrder::MARKET_BUY_MODE_NORMAL,
                 'idx' => $idx,
                 'order_id' => $goods['order_id'],
             )),
diff --git a/webapp/models/BcOrder.php b/webapp/models/BcOrder.php
index 61af55b1..a79d1d36 100644
--- a/webapp/models/BcOrder.php
+++ b/webapp/models/BcOrder.php
@@ -1,14 +1,18 @@
 <?php
 
-
 namespace models;
 
-
 use phpcommon\SqlHelper;
 
-class BcOrder
-{
-    public static function upsert($transId,$fieldsKv){
+class BcOrder {
+
+    const NORMAL_ORDER_TYPE = 0;
+    const SPEC_ORDER_TYPE = 1;
+
+    const SHOP_BUY_MODE_NORMAL = 0;
+    const MARKET_BUY_MODE_NORMAL = 1;
+
+    public static function upsert($transId, $fieldsKv){
         SqlHelper::upsert
         (myself()->_getSelfMysql(),
             't_bc_order',
@@ -34,4 +38,5 @@ class BcOrder
             )
         );
     }
-}
\ No newline at end of file
+
+}