diff --git a/packages/backend/src/core/DriveService.ts b/packages/backend/src/core/DriveService.ts
index 1550fe3d3c..097dfaea87 100644
--- a/packages/backend/src/core/DriveService.ts
+++ b/packages/backend/src/core/DriveService.ts
@@ -8,7 +8,7 @@ import * as fs from 'node:fs';
 import { Inject, Injectable } from '@nestjs/common';
 import sharp from 'sharp';
 import { sharpBmp } from '@misskey-dev/sharp-read-bmp';
-import { IsNull } from 'typeorm';
+import { In, IsNull } from 'typeorm';
 import { DeleteObjectCommandInput, PutObjectCommandInput, NoSuchKey } from '@aws-sdk/client-s3';
 import { DI } from '@/di-symbols.js';
 import type { DriveFilesRepository, UsersRepository, DriveFoldersRepository, UserProfilesRepository, MiMeta } from '@/models/_.js';
@@ -713,6 +713,21 @@ export class DriveService {
 		return fileObj;
 	}
 
+	@bindThis
+	public async moveFiles(fileIds: MiDriveFile['id'][], folderId: MiDriveFolder['id'] | null, userId: MiUser['id']) {
+		const folder = folderId ? await this.driveFoldersRepository.findOneByOrFail({
+			id: folderId,
+			userId: userId,
+		}) : null;
+
+		await this.driveFilesRepository.update({
+			id: In(fileIds),
+			userId: userId,
+		}, {
+			folderId: folder ? folder.id : null,
+		});
+	}
+
 	@bindThis
 	public async deleteFile(file: MiDriveFile, isExpired = false, deleter?: MiUser) {
 		if (file.storedInternal) {
diff --git a/packages/backend/src/server/api/endpoint-list.ts b/packages/backend/src/server/api/endpoint-list.ts
index 34aaef3cc7..eda7a4446d 100644
--- a/packages/backend/src/server/api/endpoint-list.ts
+++ b/packages/backend/src/server/api/endpoint-list.ts
@@ -169,6 +169,7 @@ export * as 'drive/files/find' from './endpoints/drive/files/find.js';
 export * as 'drive/files/find-by-hash' from './endpoints/drive/files/find-by-hash.js';
 export * as 'drive/files/show' from './endpoints/drive/files/show.js';
 export * as 'drive/files/update' from './endpoints/drive/files/update.js';
+export * as 'drive/files/move-bulk' from './endpoints/drive/files/move-bulk.js';
 export * as 'drive/files/upload-from-url' from './endpoints/drive/files/upload-from-url.js';
 export * as 'drive/folders' from './endpoints/drive/folders.js';
 export * as 'drive/folders/create' from './endpoints/drive/folders/create.js';
diff --git a/packages/backend/src/server/api/endpoints/drive/files/move-bulk.ts b/packages/backend/src/server/api/endpoints/drive/files/move-bulk.ts
new file mode 100644
index 0000000000..79e505575b
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/drive/files/move-bulk.ts
@@ -0,0 +1,43 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { DriveService } from '@/core/DriveService.js';
+import { ApiError } from '../../../error.js';
+
+export const meta = {
+	tags: ['drive'],
+
+	requireCredential: true,
+
+	kind: 'write:drive',
+
+	errors: {
+	},
+
+	res: {},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		fileIds: { type: 'array', uniqueItems: true, minItems: 1, maxItems: 100, items: { type: 'string', format: 'misskey:id' } },
+		folderId: { type: 'string', format: 'misskey:id', nullable: true },
+	},
+	required: ['fileIds'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private driveService: DriveService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.driveService.moveFiles(ps.fileIds, ps.folderId ?? null, me.id);
+		});
+	}
+}