diff --git a/app/Http/Controllers/Admin/PlatformOrderController.php b/app/Http/Controllers/Admin/PlatformOrderController.php
index 1355f92..a61d7d1 100644
--- a/app/Http/Controllers/Admin/PlatformOrderController.php
+++ b/app/Http/Controllers/Admin/PlatformOrderController.php
@@ -537,6 +537,7 @@ class PlatformOrderController extends Controller
                 '最近退款时间',
                 '最近退款金额',
                 '最近退款渠道',
+                '退款总额',
             ];
 
             if ($includeMeta) {
@@ -596,6 +597,13 @@ class PlatformOrderController extends Controller
                         (string) (data_get($latestRefund, 'refunded_at') ?? ''),
                         (float) (data_get($latestRefund, 'amount') ?? 0),
                         (string) (data_get($latestRefund, 'channel') ?? ''),
+                        (function () use ($refunds) {
+                            $total = 0.0;
+                            foreach ($refunds as $r) {
+                                $total += (float) (data_get($r, 'amount') ?? 0);
+                            }
+                            return $total;
+                        })(),
                     ];
 
                     if ($includeMeta) {
diff --git a/resources/views/admin/platform_orders/show.blade.php b/resources/views/admin/platform_orders/show.blade.php
index 570d2f9..81bd78f 100644
--- a/resources/views/admin/platform_orders/show.blade.php
+++ b/resources/views/admin/platform_orders/show.blade.php
@@ -24,6 +24,13 @@
         <tr><th>支付时间</th><td>{{ optional($order->paid_at)->format('Y-m-d H:i:s') ?: '-' }}</td></tr>
         <tr><th>生效时间</th><td>{{ optional($order->activated_at)->format('Y-m-d H:i:s') ?: '-' }}</td></tr>
         <tr><th>退款时间</th><td>{{ optional($order->refunded_at)->format('Y-m-d H:i:s') ?: '-' }}</td></tr>
+        @php
+            $refundTotal = 0.0;
+            foreach ((array) (data_get($order->meta, 'refund_receipts', []) ?? []) as $r) {
+                $refundTotal += (float) (data_get($r, 'amount') ?? 0);
+            }
+        @endphp
+        <tr><th>退款总额</th><td>¥{{ number_format($refundTotal, 2) }}</td></tr>
         </tbody>
     </table>
 
diff --git a/tests/Feature/AdminPlatformOrderExportTest.php b/tests/Feature/AdminPlatformOrderExportTest.php
index 9ea02fb..273e4e4 100644
--- a/tests/Feature/AdminPlatformOrderExportTest.php
+++ b/tests/Feature/AdminPlatformOrderExportTest.php
@@ -125,6 +125,7 @@ class AdminPlatformOrderExportTest extends TestCase
         $this->assertStringContainsString('订阅ID', $content);
         $this->assertStringContainsString('最近批量生效时间', $content);
         $this->assertStringContainsString('最近批量生效管理员', $content);
+        $this->assertStringContainsString('退款总额', $content);
 
         // include_meta=1 时应包含 meta(JSON) 列
         $res2 = $this->get('/admin/platform-orders/export?include_meta=1');
diff --git a/tests/Feature/AdminPlatformOrderRefundReceiptTest.php b/tests/Feature/AdminPlatformOrderRefundReceiptTest.php
index 9a70a35..db593e8 100644
--- a/tests/Feature/AdminPlatformOrderRefundReceiptTest.php
+++ b/tests/Feature/AdminPlatformOrderRefundReceiptTest.php
@@ -74,6 +74,13 @@ class AdminPlatformOrderRefundReceiptTest extends TestCase
 
         $this->assertSame('partially_refunded', $order->payment_status);
         $this->assertNotNull($order->refunded_at);
+
+        // 确保退款轨迹可用于对账统计
+        $totalRefunded = 0.0;
+        foreach ($refunds as $r) {
+            $totalRefunded += (float) (data_get($r, 'amount') ?? 0);
+        }
+        $this->assertSame(10.0, $totalRefunded);
     }
 
     public function test_platform_admin_can_add_refund_receipt_and_mark_fully_refunded_when_total_refund_reaches_paid_amount(): void