diff --git a/packages/plugins/@nocobase/plugin-backups/src/server/__tests__/managers/backup.test.ts b/packages/plugins/@nocobase/plugin-backups/src/server/__tests__/managers/backup.test.ts
index 1400570968a..725b2f01ac7 100644
--- a/packages/plugins/@nocobase/plugin-backups/src/server/__tests__/managers/backup.test.ts
+++ b/packages/plugins/@nocobase/plugin-backups/src/server/__tests__/managers/backup.test.ts
@@ -12,7 +12,7 @@ import { BackupManager, BackupSettings } from '../../managers/backup';
 import { MockServer } from '@nocobase/test';
 import path from 'path';
 import { storagePathJoin } from '@nocobase/utils';
-import { BACKUP_EXTENSION, METADATA_EXTENSION } from '../../utils';
+import { BACKUP_EXTENSION, METADATA_EXTENSION, SETTINGS } from '../../utils';
 import fs from 'fs';
 import * as cp from 'child_process';
 import PluginFileManagerServer from '@nocobase/plugin-file-manager';
@@ -126,6 +126,55 @@ describe('BackupManager', async () => {
       expect(files).toContain(`${backupFileBaseName}.nbdata`);
     });
 
+    it('should upload using configured cloud storage when backup options omit storageId', async () => {
+      const uploadFile = vi.fn().mockResolvedValue({ filename: 'cloud-backups/backup_for_unit_tests.nbdata' });
+      const storageRepository = {
+        findOne: vi.fn().mockResolvedValue({
+          id: 1,
+          title: 'Aliyun OSS',
+          type: 'ali-oss',
+          name: 'aliyun-oss',
+          baseUrl: '',
+          options: {},
+        }),
+      };
+      const getRepository = app.db.getRepository.bind(app.db);
+      const getRepositorySpy = vi.spyOn(app.db, 'getRepository').mockImplementation((name: string) => {
+        if (name === 'storages') {
+          return storageRepository as ReturnType<typeof app.db.getRepository>;
+        }
+        return getRepository(name);
+      });
+      const pmGetSpy = vi.spyOn(app.pm, 'get').mockReturnValue({
+        uploadFile,
+      } as unknown as PluginFileManagerServer);
+      const settingsRepository = app.db.getRepository(SETTINGS);
+      const settings = await settingsRepository.findOne();
+      await settingsRepository.update({
+        values: { storageId: 1 },
+        filterByTk: settings.get('id'),
+      });
+      const backupSettings = await settingsRepository.findOne();
+      const backupManager = new BackupManager(app, null, backupSettings);
+
+      try {
+        await backupManager.backup(backupFileBaseName, {
+          description: 'Manual backup from settings page',
+        });
+
+        expect(storageRepository.findOne).toHaveBeenCalledWith({
+          filterByTk: 1,
+        });
+        expect(uploadFile).toHaveBeenCalledWith({
+          filePath: finalBackupFilePath,
+          storageName: 'aliyun-oss',
+        });
+      } finally {
+        getRepositorySpy.mockRestore();
+        pmGetSpy.mockRestore();
+      }
+    });
+
     it('should honor enableFilesBackup from backup options', async () => {
       const backupManager = new BackupManager(app, null, defaultBackupSettings);
       const fileCollection = {
diff --git a/packages/plugins/@nocobase/plugin-backups/src/server/managers/backup.ts b/packages/plugins/@nocobase/plugin-backups/src/server/managers/backup.ts
index 1518fcd5544..bf446844355 100644
--- a/packages/plugins/@nocobase/plugin-backups/src/server/managers/backup.ts
+++ b/packages/plugins/@nocobase/plugin-backups/src/server/managers/backup.ts
@@ -36,7 +36,7 @@ import {
 const BACKUP_METADATA_VERSION = 2;
 
 export interface BackupSettings {
-  storageId?: string;
+  storageId?: string | number | null;
   encryptionPassword: string;
   enableFilesBackup: boolean;
   keep?: number;
@@ -71,6 +71,10 @@ export interface BackupTaskResult {
   inProgress: boolean;
 }
 
+type BackupSettingsInput = BackupSettings & {
+  toJSON?: () => Partial<BackupSettings>;
+};
+
 export class BackupManager {
   app: Application;
   ctx: ResourcerContext | null; // when triggered by cron job, ctx is null
@@ -83,10 +87,10 @@ export class BackupManager {
   #uploadDir: string;
   #aesKeyPath: string;
 
-  constructor(app: Application, ctx: ResourcerContext | null, settings: BackupSettings) {
+  constructor(app: Application, ctx: ResourcerContext | null, settings: BackupSettingsInput) {
     this.app = app;
     this.ctx = ctx;
-    this.#settings = settings;
+    this.#settings = this.#normalizeBackupSettings(settings);
     this.#dbAdapter = getDBAdapter(app.db.options);
     this.#backupTasksCacheName = BACKUP_TASKS_CACHE_NAME;
     this.#backupPrefix = 'backup_';
@@ -116,6 +120,14 @@ export class BackupManager {
     this.#backupTasksCacheName = backupTasksCacheName;
   }
 
+  #normalizeBackupSettings(settings: BackupSettingsInput): BackupSettings {
+    if (typeof settings.toJSON === 'function') {
+      return settings.toJSON() as BackupSettings;
+    }
+
+    return { ...settings };
+  }
+
   async createBackupName() {
     await this.#dbAdapter.check('backup');
     await fsPromises.mkdir(this.#backupDir, { recursive: true });
@@ -454,7 +466,7 @@ export class BackupManager {
     return output;
   }
 
-  async #uploadFiles(filePath: string, storageId?: string) {
+  async #uploadFiles(filePath: string, storageId?: BackupSettings['storageId']) {
     if (!storageId) {
       return;
     }