diff --git a/tests/Feature/AdminPlatformOrderShowFindSubscriptionLinkShouldUseOrderShowSelfBackWhenOuterBackSafeTest.php b/tests/Feature/AdminPlatformOrderShowFindSubscriptionLinkShouldUseOrderShowSelfBackWhenOuterBackSafeTest.php
new file mode 100644
index 0000000..517bac6
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderShowFindSubscriptionLinkShouldUseOrderShowSelfBackWhenOuterBackSafeTest.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Arr;
+use Tests\TestCase;
+
+class AdminPlatformOrderShowFindSubscriptionLinkShouldUseOrderShowSelfBackWhenOuterBackSafeTest 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_find_subscription_link_should_still_use_order_show_self_back_and_attach_back_when_outer_back_is_safe(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'po_show_find_sub_safe_back_plan',
+            'name' => '订单详情查找订阅 safe back 测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 30,
+            'list_price' => 30,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $order = PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_SHOW_FIND_SUB_SAFE_BACK_0001',
+            'order_type' => 'renewal',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 30,
+            'paid_amount' => 0,
+            'placed_at' => now(),
+            'meta' => [],
+        ]);
+
+        $safeBack = '/admin/platform-orders?' . Arr::query([
+            'status' => 'pending',
+            'keyword' => '续费缺订阅',
+        ]);
+
+        $res = $this->get('/admin/platform-orders/' . $order->id . '?back=' . urlencode($safeBack));
+        $res->assertOk();
+
+        $html = (string) $res->getContent();
+        $orderShowSelf = '/admin/platform-orders/' . $order->id;
+
+        $this->assertStringContainsString('href="' . $safeBack . '"', $html);
+        $this->assertStringContainsString('← 返回上一页（保留上下文）', $html);
+        $this->assertStringContainsString('/admin/site-subscriptions?', $html);
+        $this->assertStringContainsString('merchant_id=' . $merchant->id, $html);
+        $this->assertStringContainsString('plan_id=' . $plan->id, $html);
+        $this->assertStringContainsString('back=' . urlencode($orderShowSelf), $html);
+        $this->assertStringContainsString('attach_order_id=' . $order->id, $html);
+        $this->assertStringContainsString('attach_back=' . urlencode($orderShowSelf), $html);
+        $this->assertStringNotContainsString('back%3D', $html);
+    }
+}