diff --git a/common/modelsgii/oldDb/Drug.php b/common/modelsgii/oldDb/Drug.php
index e28da74..8f78868 100644
--- a/common/modelsgii/oldDb/Drug.php
+++ b/common/modelsgii/oldDb/Drug.php
@@ -32,6 +32,7 @@ namespace common\modelsgii\oldDb;
  * @property string|null $drug_alias 药品别名
  * @property string|null $place 产地
  * @property int $decotion 煎法
+ * @property float $erp_qty_factor ERP抓取数量倍数，默认1
  * @property int $updated_at
  * @property int $created_at
  */
diff --git a/platform/modules/v1/controllers/ErpController.php b/platform/modules/v1/controllers/ErpController.php
index 7c5df4d..261ceb4 100644
--- a/platform/modules/v1/controllers/ErpController.php
+++ b/platform/modules/v1/controllers/ErpController.php
@@ -9,6 +9,7 @@ namespace platform\modules\v1\controllers;
 use common\jobs\ProductOrderSendJob;
 use common\jobs\templateMessage\ProductOrderSend;
 use common\models\oldDb\ExpressNos;
+use common\models\oldDb\Drug;
 use common\models\oldDb\Prescription;
 use common\models\oldDb\ProductOrder;
 use common\models\oldDb\ProductOrderLog;
@@ -40,7 +41,7 @@ class ErpController extends Controller
             ProductOrderLog::saveLog(0,'江奥川ERP拉取西(中成)药订单开始 startDate:'.$post['startDate'].' endDate:'.$post['endDate']);
             $startDate = strtotime($post['startDate']);
             $endDate = strtotime($post['endDate']) + 86400;
-            
+
             $productOrders = ProductOrder::find()->alias('po')->where([
                     'po.prescription_type' => 2,
                     'po.is_sync_erp' => 0,
@@ -53,6 +54,8 @@ class ErpController extends Controller
                 ->with(['orderItems','store', 'prescription'])
                 ->asArray()
                 ->all();
+            // 批量加载药品 ERP 数量倍数，避免循环内逐条查询
+            $drugFactorMap = $this->buildDrugErpQtyFactorMap($productOrders);
             //解析成erp所需参数（订单详情是否需要改动 - 线上订单的展示）
             $erpData = [];
             $ids = [];
@@ -94,14 +97,7 @@ class ErpController extends Controller
 
                     $orderItems = [];
                     foreach($v['orderItems'] as $vk=>$vv){
-                        // $drug = Drug::findOne($vv['drug_id']);
-                        $orderItems[$vk] = [
-                            'detailId' => $vv['id'],
-                            'productSku' => $vv['drug_no'],
-                            'quantity' => $vv['number'],
-                            'paymentPrice' => $vv['buy_price'],
-                            'price' => round($vv['number'] * $vv['buy_price'], 2)
-                        ];
+                        $orderItems[$vk] = $this->buildErpOrderItem($vv, $drugFactorMap);
                     }
 
                     $erpData[$k]['orderItems'] = $orderItems;
@@ -140,14 +136,7 @@ class ErpController extends Controller
 
                             $orderItems = [];
                             foreach($v['orderItems'] as $vk=>$vv){
-                                // $drug = Drug::findOne($vv['drug_id']);
-                                $orderItems[$vk] = [
-                                    'detailId' => $vv['id'],
-                                    'productSku' => $vv['drug_no'],
-                                    'quantity' => $vv['number'],
-                                    'paymentPrice' => $vv['buy_price'],
-                                    'price' => round($vv['number'] * $vv['buy_price'], 2)
-                                ];
+                                $orderItems[$vk] = $this->buildErpOrderItem($vv, $drugFactorMap);
                             }
 
                             $erpData[$k]['orderItems'] = $orderItems;
@@ -158,7 +147,7 @@ class ErpController extends Controller
 
                 }
             }
-//            ds($erpData);
+            ds($erpData);
             if(!empty($ids)){
                 //更新为已同步erp
                 \Yii::$app->db->createCommand()->update('yii_product_order', [
@@ -184,6 +173,62 @@ class ErpController extends Controller
         return $erpData;
     }
 
+    /**
+     * 从待同步订单中收集 drug_id，批量查询 ERP 数量倍数
+     * @param array $productOrders
+     * @return array<int, float> drug_id => factor
+     */
+    private function buildDrugErpQtyFactorMap(array $productOrders): array
+    {
+        $drugIds = [];
+        foreach ($productOrders as $order) {
+            if (empty($order['orderItems'])) {
+                continue;
+            }
+            foreach ($order['orderItems'] as $item) {
+                if (!empty($item['drug_id'])) {
+                    $drugIds[] = (int) $item['drug_id'];
+                }
+            }
+        }
+        $drugIds = array_unique($drugIds);
+        if (empty($drugIds)) {
+            return [];
+        }
+        $rows = Drug::find()
+            ->select(['id', 'erp_qty_factor'])
+            ->where(['id' => $drugIds])
+            ->asArray()
+            ->all();
+        $map = [];
+        foreach ($rows as $row) {
+            $factor = (float) ($row['erp_qty_factor'] ?? 1);
+            $map[(int) $row['id']] = $factor > 0 ? $factor : 1;
+        }
+        return $map;
+    }
+
+    /**
+     * 构建 ERP 订单明细：quantity 按药品倍数换算，price 仍按原订单数量
+     * @param array $item 订单明细
+     * @param array<int, float> $drugFactorMap
+     * @return array
+     */
+    private function buildErpOrderItem(array $item, array $drugFactorMap): array
+    {
+        $drugId = (int) ($item['drug_id'] ?? 0);
+        $factor = $drugFactorMap[$drugId] ?? 1;
+        $originQty = (int) ($item['number'] ?? 0);
+        $erpQty = (int) round($originQty * $factor);
+        return [
+            'detailId' => $item['id'],
+            'productSku' => $item['drug_no'],
+            'quantity' => $erpQty,
+            'paymentPrice' => $item['buy_price'],
+            'price' => round($originQty * $item['buy_price'], 2),
+        ];
+    }
+
     /**
      * @author: liudiao
      * @Date: 2023-08-01 14:10:45