diff --git a/app/Http/Controllers/Admin/PlanController.php b/app/Http/Controllers/Admin/PlanController.php
index f697dfc..d65e4af 100644
--- a/app/Http/Controllers/Admin/PlanController.php
+++ b/app/Http/Controllers/Admin/PlanController.php
@@ -219,6 +219,28 @@ class PlanController extends Controller
         return redirect()->back()->with('success', '套餐状态已更新：' . ($this->statusLabels()[$plan->status] ?? $plan->status));
     }
 
+    public function setPublished(Request $request, Plan $plan): RedirectResponse
+    {
+        $this->ensurePlatformAdmin($request);
+
+        $data = $request->validate([
+            'published' => ['required', Rule::in(['0', '1'])],
+        ]);
+
+        $published = (string) $data['published'] === '1';
+
+        if ($published) {
+            // 最小治理：发布动作仅写 published_at，不改变 status（避免误把草稿/停用套餐误启用）。
+            $plan->published_at = $plan->published_at ?? now();
+        } else {
+            $plan->published_at = null;
+        }
+
+        $plan->save();
+
+        return redirect()->back()->with('success', $published ? '套餐已发布' : '套餐已取消发布');
+    }
+
     public function update(Request $request, Plan $plan): RedirectResponse
     { 
         $this->ensurePlatformAdmin($request);
diff --git a/resources/views/admin/plans/index.blade.php b/resources/views/admin/plans/index.blade.php
index 7f4ee70..8fc7f0c 100644
--- a/resources/views/admin/plans/index.blade.php
+++ b/resources/views/admin/plans/index.blade.php
@@ -274,6 +274,16 @@
                         </select>
                         <noscript><button type="submit" class="btn btn-secondary btn-sm">更新状态</button></noscript>
                     </form>
+
+                    <form method="post" action="/admin/plans/{{ $plan->id }}/set-published" class="mt-6 actions gap-10">
+                        @csrf
+                        @php $isPublished = (bool) $plan->published_at; @endphp
+                        <select name="published" onchange="this.form.submit()" class="w-140">
+                            <option value="1" @selected($isPublished)>已发布</option>
+                            <option value="0" @selected(!$isPublished)>未发布</option>
+                        </select>
+                        <noscript><button type="submit" class="btn btn-secondary btn-sm">更新发布状态</button></noscript>
+                    </form>
                 </td>
             </tr>
         @empty
diff --git a/routes/web.php b/routes/web.php
index 00697e4..b318edb 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -144,6 +144,7 @@ Route::prefix('admin')->group(function () {
         Route::get('/plans/{plan}/edit', [PlanController::class, 'edit']);
         Route::post('/plans/{plan}', [PlanController::class, 'update']);
         Route::post('/plans/{plan}/set-status', [PlanController::class, 'setStatus']);
+        Route::post('/plans/{plan}/set-published', [PlanController::class, 'setPublished']);
 
         Route::get('/settings/system', [PlatformSettingController::class, 'system']);
         Route::post('/settings/system/{id}', [PlatformSettingController::class, 'updateSystem']);
diff --git a/tests/Feature/AdminPlanSetPublishedTest.php b/tests/Feature/AdminPlanSetPublishedTest.php
new file mode 100644
index 0000000..55f461e
--- /dev/null
+++ b/tests/Feature/AdminPlanSetPublishedTest.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Plan;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlanSetPublishedTest 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_platform_admin_can_set_plan_published_flag(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $plan = Plan::query()->create([
+            'code' => 'publish_toggle_test',
+            'name' => '发布状态切换测试',
+            'billing_cycle' => 'monthly',
+            'price' => 9,
+            'list_price' => 9,
+            'status' => 'draft',
+            'sort' => 10,
+            'published_at' => null,
+        ]);
+
+        $this->post('/admin/plans/' . $plan->id . '/set-published', [
+            'published' => '1',
+        ])->assertRedirect();
+
+        $plan->refresh();
+        $this->assertNotNull($plan->published_at);
+
+        $this->post('/admin/plans/' . $plan->id . '/set-published', [
+            'published' => '0',
+        ])->assertRedirect();
+
+        $plan->refresh();
+        $this->assertNull($plan->published_at);
+    }
+
+    public function test_guest_cannot_set_plan_published_flag(): void
+    {
+        $this->seed();
+
+        $plan = Plan::query()->create([
+            'code' => 'publish_toggle_guest_test',
+            'name' => '发布状态切换测试(guest)',
+            'billing_cycle' => 'monthly',
+            'price' => 9,
+            'list_price' => 9,
+            'status' => 'draft',
+            'sort' => 10,
+            'published_at' => null,
+        ]);
+
+        $this->post('/admin/plans/' . $plan->id . '/set-published', [
+            'published' => '1',
+        ])->assertRedirect('/admin/login');
+    }
+}