diff --git a/app/Console/Commands/ImportArticleDocuments.php b/app/Console/Commands/ImportArticleDocuments.php
index 2e9f2b6..d5d8c02 100644
--- a/app/Console/Commands/ImportArticleDocuments.php
+++ b/app/Console/Commands/ImportArticleDocuments.php
@@ -9,6 +9,7 @@ use App\Models\Document;
 use App\Models\DocumentCategory;
 use App\Models\DocumentVersion;
 use App\Models\User;
+use App\Services\SiteRevalidationService;
 use Illuminate\Console\Command;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Storage;
@@ -127,6 +128,18 @@ class ImportArticleDocuments extends Command
         $existing = Document::where('public_uuid', $publicUuid)->first();
 
         if ($existing) {
+            if ($markArchived && $article->status !== Article::STATUS_ARCHIVED) {
+                $article->update([
+                    'status' => Article::STATUS_ARCHIVED,
+                    'archived_at' => now(),
+                    'last_updated_by_user_id' => ($article->creator ?: $fallbackUser)->id,
+                ]);
+                SiteRevalidationService::revalidateArticle($article->slug);
+                $this->info("✓ {$article->slug}: already imported, source article archived.");
+
+                return 'archived_source';
+            }
+
             $this->warn("↷ {$article->slug}: already imported as document #{$existing->id}, skipping.");
 
             return 'skipped';
@@ -225,6 +238,7 @@ class ImportArticleDocuments extends Command
                     'archived_at' => now(),
                     'last_updated_by_user_id' => $actor->id,
                 ]);
+                SiteRevalidationService::revalidateArticle($article->slug);
             }
 
             AuditLog::create([
diff --git a/tests/Feature/Cms/ImportArticleDocumentsCommandTest.php b/tests/Feature/Cms/ImportArticleDocumentsCommandTest.php
index c15a424..7c55514 100644
--- a/tests/Feature/Cms/ImportArticleDocumentsCommandTest.php
+++ b/tests/Feature/Cms/ImportArticleDocumentsCommandTest.php
@@ -127,4 +127,45 @@ class ImportArticleDocumentsCommandTest extends TestCase
         $this->assertNotNull($article->archived_at);
         $this->assertDatabaseCount('documents', 1);
     }
+
+    public function test_it_can_archive_already_imported_source_articles(): void
+    {
+        Storage::fake('public');
+        Storage::fake('private');
+
+        $user = User::factory()->create();
+        DocumentCategory::factory()->create([
+            'slug' => 'organization-public-disclosure',
+            'name' => '組織公開資訊',
+            'default_access_level' => 'public',
+        ]);
+
+        $article = Article::factory()->create([
+            'title' => '先匯入後封存',
+            'slug' => 'legacy-import-then-archive',
+            'content_type' => Article::CONTENT_TYPE_DOCUMENT,
+            'status' => Article::STATUS_PUBLISHED,
+            'access_level' => Article::ACCESS_LEVEL_PUBLIC,
+            'created_by_user_id' => $user->id,
+            'last_updated_by_user_id' => $user->id,
+        ]);
+
+        $this->artisan('articles:import-documents', [
+            '--fallback-user-id' => $user->id,
+        ])->assertExitCode(0);
+
+        $this->assertDatabaseCount('documents', 1);
+        $article->refresh();
+        $this->assertSame(Article::STATUS_PUBLISHED, $article->status);
+
+        $this->artisan('articles:import-documents', [
+            '--fallback-user-id' => $user->id,
+            '--mark-archived' => true,
+        ])->assertExitCode(0);
+
+        $article->refresh();
+        $this->assertSame(Article::STATUS_ARCHIVED, $article->status);
+        $this->assertNotNull($article->archived_at);
+        $this->assertDatabaseCount('documents', 1);
+    }
 }