diff --git a/tests/Feature/AdminPlatformOrderSubscriptionLockedRenewFlowTest.php b/tests/Feature/AdminPlatformOrderSubscriptionLockedRenewFlowTest.php
new file mode 100644
index 0000000..cce7c88
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderSubscriptionLockedRenewFlowTest.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use App\Models\SiteSubscription;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Arr;
+use Tests\TestCase;
+
+class AdminPlatformOrderSubscriptionLockedRenewFlowTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_locked_subscription_index_to_renew_create_to_store_should_keep_back_context(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+
+        $plan = Plan::query()->create([
+            'code' => 'po_locked_sub_renew_flow_plan',
+            'name' => '平台订单订阅锁定续费下单流转测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $sub = SiteSubscription::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'status' => 'active',
+            'source' => 'manual',
+            'subscription_no' => 'SS_LOCKED_RENEW_FLOW_0001',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'amount' => 10,
+            'starts_at' => now(),
+            'ends_at' => now()->addMonth(),
+        ]);
+
+        // 1) 订阅锁定的订单列表
+        $indexUrl = '/admin/platform-orders?' . Arr::query([
+            'site_subscription_id' => $sub->id,
+        ]);
+        $res = $this->get($indexUrl);
+        $res->assertOk();
+        $res->assertSee('为该订阅创建续费订单', false);
+
+        // 2) 点击一键续费下单（直接构造期望 create URL）
+        $expectedCreateUrl = '/admin/platform-orders/create?' . Arr::query([
+            'order_type' => 'renewal',
+            'site_subscription_id' => $sub->id,
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'quantity' => 1,
+            'remark' => config('saasshop.platform_orders.renewal_order_remark_prefix', '来自订阅：') . $sub->subscription_no,
+            'back' => $indexUrl,
+        ]);
+
+        $res->assertSee($expectedCreateUrl, false);
+
+        $res2 = $this->get($expectedCreateUrl);
+        $res2->assertOk();
+        $res2->assertSee('新建平台订单', false);
+        $res2->assertSee('该订单类型为「续费」', false);
+
+        // 3) 提交创建订单：应携带 back 并最终落在订单详情页，且详情页可返回到锁定列表
+        $postRes = $this->post('/admin/platform-orders', [
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'site_subscription_id' => $sub->id,
+            'order_type' => 'renewal',
+            'quantity' => 1,
+            'discount_amount' => 0,
+            'payment_channel' => 'offline',
+            'remark' => 'test-renew-remark',
+            'back' => $indexUrl,
+        ]);
+
+        $order = PlatformOrder::query()->latest('id')->firstOrFail();
+
+        $expectedRedirect = '/admin/platform-orders/' . $order->id . '?' . Arr::query([
+            'back' => $indexUrl,
+        ]);
+
+        $postRes->assertRedirect($expectedRedirect);
+
+        $showRes = $this->get($expectedRedirect);
+        $showRes->assertOk();
+        $showRes->assertSee('← 返回上一页（保留上下文）', false);
+        $showRes->assertSee('href="' . $indexUrl . '"', false);
+    }
+}