diff --git a/resources/views/admin/site_subscriptions/show.blade.php b/resources/views/admin/site_subscriptions/show.blade.php
index 818057b..dd8d0f7 100644
--- a/resources/views/admin/site_subscriptions/show.blade.php
+++ b/resources/views/admin/site_subscriptions/show.blade.php
@@ -73,7 +73,7 @@
             <div class="muted">状态</div>
             <div class="num-md">{{ ($statusLabels[$subscription->status] ?? $subscription->status) }} <span class="muted">({{ $subscription->status }})</span></div>
             <div class="mt-6">
-                <form method="post" action="/admin/site-subscriptions/{{ $subscription->id }}/set-status" class="actions gap-10">
+                <form method="post" action="/admin/site-subscriptions/{{ $subscription->id }}/set-status" class="actions gap-10" data-action="disable-on-submit">
                     @csrf
                     <select name="status" onchange="this.form.submit()" class="w-140">
                         @foreach(($statusLabels ?? []) as $value => $label)
diff --git a/tests/Feature/AdminSiteSubscriptionShowSetStatusFormShouldDisableOnSubmitTest.php b/tests/Feature/AdminSiteSubscriptionShowSetStatusFormShouldDisableOnSubmitTest.php
new file mode 100644
index 0000000..c97554f
--- /dev/null
+++ b/tests/Feature/AdminSiteSubscriptionShowSetStatusFormShouldDisableOnSubmitTest.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\SiteSubscription;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminSiteSubscriptionShowSetStatusFormShouldDisableOnSubmitTest 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_show_set_status_form_should_disable_on_submit(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+
+        $sub = SiteSubscription::query()->create([
+            'merchant_id' => $merchant->id,
+            'status' => 'pending',
+            'source' => 'manual',
+            'subscription_no' => 'SUB_SHOW_SET_STATUS_DISABLE_0001',
+            'plan_name' => '测试套餐',
+            'billing_cycle' => 'monthly',
+            'period_months' => 1,
+            'amount' => 10,
+            'starts_at' => now()->subDay(),
+            'ends_at' => now()->addDays(29),
+        ]);
+
+        $res = $this->get('/admin/site-subscriptions/' . $sub->id);
+        $res->assertOk();
+
+        $res->assertSee('action="/admin/site-subscriptions/' . $sub->id . '/set-status"', false);
+        $res->assertSee('data-action="disable-on-submit"', false);
+    }
+}