diff --git a/addons/shopro/library/traits/model/order/OrderOper.php b/addons/shopro/library/traits/model/order/OrderOper.php
index 18d3077..c945af9 100644
--- a/addons/shopro/library/traits/model/order/OrderOper.php
+++ b/addons/shopro/library/traits/model/order/OrderOper.php
@@ -824,19 +824,41 @@ trait OrderOper
 
     public function paymentProcess($order, $notify)
     {
-        $order->status         = Order::STATUS_PAYED;
-        $order->paytime        = time();
-        $order->transaction_id = $notify['transaction_id'];
-        $order->payment_json   = $notify['payment_json'];
-        $order->pay_type       = $notify['pay_type'];
-        $order->pay_fee        = $notify['pay_fee'];
-
-        // 组合支付更新付款金额
-        if ($order->pay_type == 'group') {
-            $order->total_fee = bcsub($order->total_fee, $order->pay_money, 2);
+        $orderId = is_object($order) ? (int) $order->id : (int) ($order['id'] ?? 0);
+        if ($orderId <= 0) {
+            return $order;
         }
 
-        $order->save();
+        $firstPaid = false;
+        $order = Db::transaction(function () use ($orderId, $notify, &$firstPaid) {
+            $order = Order::where('id', $orderId)->lock(true)->find();
+            if (!$order) {
+                return null;
+            }
+            if ((int) $order->status > Order::STATUS_NOPAY) {
+                \think\Log::info('[order_pay] paymentProcess skip duplicate order_id=' . $orderId);
+                return $order;
+            }
+
+            $firstPaid = true;
+            $order->status         = Order::STATUS_PAYED;
+            $order->paytime        = time();
+            $order->transaction_id = $notify['transaction_id'];
+            $order->payment_json   = $notify['payment_json'];
+            $order->pay_type       = $notify['pay_type'];
+            $order->pay_fee        = $notify['pay_fee'];
+
+            if ($order->pay_type == 'group') {
+                $order->total_fee = bcsub($order->total_fee, $order->pay_money, 2);
+            }
+
+            $order->save();
+            return $order;
+        });
+
+        if (!$order || !$firstPaid) {
+            return $order;
+        }
 
         try {
             saveUserMessage([
@@ -855,12 +877,10 @@ trait OrderOper
             \think\Log::error('[order_pay] operAdd failed: ' . $e->getMessage());
         }
 
-        // 组合支付扣除用户余额
         if ($order->pay_type == 'group') {
             User::where(['id' => $user->id])->setDec('money', $order->pay_money);
         }
 
-        // 预约抢购标记成已使用
         if ($order->activity_type === 'robbuy') {
             RobOrderModel::where([
                 'user_id'     => $user->id,
@@ -876,7 +896,6 @@ trait OrderOper
             \think\Log::error('[order_pay] order_payed_after hook failed: ' . $e->getMessage());
         }
 
-        // 支付成功后续使用异步队列处理
         try {
             \think\Queue::push('\addons\shopro\job\OrderPayed@payed', ['order' => $order, 'user' => $user], 'shopro-high');
         } catch (\Throwable $e) {