diff --git a/packages/backend/src/core/QueueService.ts b/packages/backend/src/core/QueueService.ts
index 04bbc7e38a..41cb0afcab 100644
--- a/packages/backend/src/core/QueueService.ts
+++ b/packages/backend/src/core/QueueService.ts
@@ -17,6 +17,7 @@ import { bindThis } from '@/decorators.js';
 import type { Antenna } from '@/server/api/endpoints/i/import-antennas.js';
 import { ApRequestCreator } from '@/core/activitypub/ApRequestService.js';
 import { type SystemWebhookPayload } from '@/core/SystemWebhookService.js';
+import type { Packed } from '@/misc/json-schema.js';
 import { type UserWebhookPayload } from './UserWebhookService.js';
 import type {
 	DbJobData,
@@ -39,7 +40,6 @@ import type {
 } from './QueueModule.js';
 import type httpSignature from '@peertube/http-signature';
 import type * as Bull from 'bullmq';
-import type { Packed } from '@/misc/json-schema.js';
 
 export const QUEUE_TYPES = [
 	'system',
@@ -125,6 +125,14 @@ export class QueueService {
 			removeOnComplete: 10,
 			removeOnFail: 30,
 		});
+
+		this.systemQueue.add('cleanRemoteNotes', {
+		}, {
+			// 毎日午前4時に起動(最も人の少ない時間帯)
+			repeat: { pattern: '0 4 * * *' },
+			removeOnComplete: 10,
+			removeOnFail: 30,
+		});
 	}
 
 	@bindThis
diff --git a/packages/backend/src/queue/QueueProcessorModule.ts b/packages/backend/src/queue/QueueProcessorModule.ts
index 9044285bf6..e01414cd53 100644
--- a/packages/backend/src/queue/QueueProcessorModule.ts
+++ b/packages/backend/src/queue/QueueProcessorModule.ts
@@ -6,7 +6,6 @@
 import { Module } from '@nestjs/common';
 import { CoreModule } from '@/core/CoreModule.js';
 import { GlobalModule } from '@/GlobalModule.js';
-import { CheckModeratorsActivityProcessorService } from '@/queue/processors/CheckModeratorsActivityProcessorService.js';
 import { QueueLoggerService } from './QueueLoggerService.js';
 import { QueueProcessorService } from './QueueProcessorService.js';
 import { DeliverProcessorService } from './processors/DeliverProcessorService.js';
@@ -18,6 +17,8 @@ import { CheckExpiredMutingsProcessorService } from './processors/CheckExpiredMu
 import { BakeBufferedReactionsProcessorService } from './processors/BakeBufferedReactionsProcessorService.js';
 import { CleanChartsProcessorService } from './processors/CleanChartsProcessorService.js';
 import { CleanProcessorService } from './processors/CleanProcessorService.js';
+import { CheckModeratorsActivityProcessorService } from './processors/CheckModeratorsActivityProcessorService.js';
+import { CleanRemoteNotesProcessorService } from './processors/CleanRemoteNotesProcessorService.js';
 import { CleanRemoteFilesProcessorService } from './processors/CleanRemoteFilesProcessorService.js';
 import { DeleteAccountProcessorService } from './processors/DeleteAccountProcessorService.js';
 import { DeleteDriveFilesProcessorService } from './processors/DeleteDriveFilesProcessorService.js';
@@ -83,6 +84,7 @@ import { RelationshipProcessorService } from './processors/RelationshipProcessor
 		AggregateRetentionProcessorService,
 		CheckExpiredMutingsProcessorService,
 		CheckModeratorsActivityProcessorService,
+		CleanRemoteNotesProcessorService,
 		QueueProcessorService,
 	],
 	exports: [
diff --git a/packages/backend/src/queue/QueueProcessorService.ts b/packages/backend/src/queue/QueueProcessorService.ts
index c98ebcdcd9..7b64182754 100644
--- a/packages/backend/src/queue/QueueProcessorService.ts
+++ b/packages/backend/src/queue/QueueProcessorService.ts
@@ -43,6 +43,7 @@ import { CheckExpiredMutingsProcessorService } from './processors/CheckExpiredMu
 import { BakeBufferedReactionsProcessorService } from './processors/BakeBufferedReactionsProcessorService.js';
 import { CleanProcessorService } from './processors/CleanProcessorService.js';
 import { AggregateRetentionProcessorService } from './processors/AggregateRetentionProcessorService.js';
+import { CleanRemoteNotesProcessorService } from './processors/CleanRemoteNotesProcessorService.js';
 import { QueueLoggerService } from './QueueLoggerService.js';
 import { QUEUE, baseWorkerOptions } from './const.js';
 
@@ -123,6 +124,7 @@ export class QueueProcessorService implements OnApplicationShutdown {
 		private bakeBufferedReactionsProcessorService: BakeBufferedReactionsProcessorService,
 		private checkModeratorsActivityProcessorService: CheckModeratorsActivityProcessorService,
 		private cleanProcessorService: CleanProcessorService,
+		private cleanRemoteNotesProcessorService: CleanRemoteNotesProcessorService,
 	) {
 		this.logger = this.queueLoggerService.logger;
 
@@ -164,6 +166,7 @@ export class QueueProcessorService implements OnApplicationShutdown {
 					case 'bakeBufferedReactions': return this.bakeBufferedReactionsProcessorService.process();
 					case 'checkModeratorsActivity': return this.checkModeratorsActivityProcessorService.process();
 					case 'clean': return this.cleanProcessorService.process();
+					case 'cleanRemoteNotes': return this.cleanRemoteNotesProcessorService.process(job);
 					default: throw new Error(`unrecognized job type ${job.name} for system`);
 				}
 			};