diff --git a/app/Admin/Services/OrderService.php b/app/Admin/Services/OrderService.php
index b4bb07b0..54b1e04b 100644
--- a/app/Admin/Services/OrderService.php
+++ b/app/Admin/Services/OrderService.php
@@ -7,7 +7,6 @@ use App\Events\OrderPaid;
 use App\Exceptions\BizException;
 use App\Models\Order;
 use App\Models\OrderLog;
-use App\Models\OrderProduct;
 use App\Services\OrderService as EndpointOrderService;
 
 class OrderService
@@ -33,29 +32,32 @@ class OrderService
             //分解到订单中除赠品外的商品
             $orderProducts = $order->products;
             $needReduceOrderProducts = [];
+            $totalAmount = 0;
             foreach ($orderProducts as $orderProduct) {
                 if (!$orderProduct->isGift()) {
-                    $needReduceOrderProducts[$orderProduct->id] = $orderProduct->total_amount;
+                    $needReduceOrderProducts[] = $orderProduct;
+                    $totalAmount += $orderProduct->total_amount;
                 }
             }
 
             $i = count($needReduceOrderProducts);
-            $totalAmount = array_sum($needReduceOrderProducts);
-            foreach ($needReduceOrderProducts as $key => $reduceOrderProductAmount) {
+            foreach ($needReduceOrderProducts as $reduceOrderProduct) {
                 $i --;
 
                 if ($i > 0) {
-                    $amount = (int) bcdiv(bcmul($needReduceAmount, $reduceOrderProductAmount, 0), $totalAmount, 2);
+                    $amount = (int) bcdiv(bcmul($needReduceAmount, $reduceOrderProduct->total_amount, 0), $totalAmount, 2);
                     $needReduceAmount -= $amount;
-                    $totalAmount -= $reduceOrderProductAmount;
+                    $totalAmount -= $reduceOrderProduct->total_amount;
                 } else {
                     $amount = $needReduceAmount;
                 }
 
+                $newTotalAmount = $reduceOrderProduct->total_amount + $reduceOrderProduct->reduced_amount - $amount;
+
                 //更新订单商品的金额
-                OrderProduct::where('id', $key)->update([
+                $reduceOrderProduct->update([
                     'reduced_amount' => $amount,
-                    'total_amount'  => $reduceOrderProductAmount - $amount,
+                    'total_amount'=> $newTotalAmount,
                 ]);
             }