diff --git a/app/Http/Controllers/Api/V1/FileStorageController.php b/app/Http/Controllers/Api/V1/FileStorageController.php
index 95e4e4d0..41e6486c 100644
--- a/app/Http/Controllers/Api/V1/FileStorageController.php
+++ b/app/Http/Controllers/Api/V1/FileStorageController.php
@@ -9,6 +9,7 @@
 use App\Http\Requests\Api\V1\ShareLinkRequest;
 use App\Services\FileStorageService;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Storage;
 
 class FileStorageController extends Controller
 {
@@ -122,6 +123,28 @@ public function view(int $id, Request $request)
         return $file->download(inline: true);
     }
 
+    /**
+     * R2 Presigned URL 발급 (30분 유효)
+     */
+    public function presignedUrl(int $id, Request $request)
+    {
+        $this->ensureContext($request);
+
+        $service = new FileStorageService;
+        $file = $service->getFile($id);
+
+        if (! $file->file_path || ! Storage::disk('r2')->exists($file->file_path)) {
+            abort(404, 'File not found in storage');
+        }
+
+        $url = Storage::disk('r2')->temporaryUrl(
+            $file->file_path,
+            now()->addMinutes(30)
+        );
+
+        return ApiResponse::handle(fn () => ['url' => $url]);
+    }
+
     /**
      * Soft delete file
      */
diff --git a/routes/api/v1/files.php b/routes/api/v1/files.php
index 4f48bc91..bed1b821 100644
--- a/routes/api/v1/files.php
+++ b/routes/api/v1/files.php
@@ -22,6 +22,7 @@
     Route::get('/{id}', [FileStorageController::class, 'show'])->name('v1.files.show');                                  // 파일 상세
     Route::get('/{id}/download', [FileStorageController::class, 'download'])->name('v1.files.download');                // 파일 다운로드
     Route::get('/{id}/view', [FileStorageController::class, 'view'])->name('v1.files.view');                              // 파일 인라인 보기 (이미지/PDF)
+    Route::get('/{id}/presigned-url', [FileStorageController::class, 'presignedUrl'])->name('v1.files.presigned-url');  // R2 Presigned URL 발급
     Route::delete('/{id}', [FileStorageController::class, 'destroy'])->name('v1.files.destroy');                        // 파일 삭제 (soft)
     Route::post('/{id}/restore', [FileStorageController::class, 'restore'])->name('v1.files.restore');                  // 파일 복구
     Route::delete('/{id}/permanent', [FileStorageController::class, 'permanentDelete'])->name('v1.files.permanent');    // 파일 영구 삭제