diff --git a/packages/backend/src/core/RelayService.ts b/packages/backend/src/core/RelayService.ts
index 3a903a79bc..69d817c3fd 100644
--- a/packages/backend/src/core/RelayService.ts
+++ b/packages/backend/src/core/RelayService.ts
@@ -110,13 +110,18 @@ export class RelayService {
 		return JSON.stringify(result);
 	}
 
+    @bindThis
+    public async getAcceptedRelays(): Promise<MiRelay[]> {
+        return await this.relaysCache.fetch(() => this.relaysRepository.findBy({
+            status: 'accepted',
+        }));
+    }
+
 	@bindThis
 	public async deliverToRelays(user: { id: MiUser['id']; host: null; }, activity: any): Promise<void> {
 		if (activity == null) return;
 
-		const relays = await this.relaysCache.fetch(() => this.relaysRepository.findBy({
-			status: 'accepted',
-		}));
+        const relays = await this.getAcceptedRelays();
 		if (relays.length === 0) return;
 
 		const copy = deepClone(activity);
diff --git a/packages/backend/src/core/activitypub/ApInboxService.ts b/packages/backend/src/core/activitypub/ApInboxService.ts
index f548db8760..b1fafe770a 100644
--- a/packages/backend/src/core/activitypub/ApInboxService.ts
+++ b/packages/backend/src/core/activitypub/ApInboxService.ts
@@ -29,6 +29,7 @@ import type { UsersRepository, NotesRepository, FollowingsRepository, MessagingM
 import { bindThis } from '@/decorators.js';
 import type { MiRemoteUser } from '@/models/User.js';
 import { getApHrefNullable, getApId, getApIds, getApType, isAccept, isActor, isAdd, isAnnounce, isBlock, isCollection, isCollectionOrOrderedCollection, isCreate, isDelete, isFlag, isFollow, isLike, isMove, isPost, isRead, isReject, isRemove, isTombstone, isUndo, isUpdate, validActor, validPost } from './type.js';
+import { GlobalEventService } from '@/core/GlobalEventService.js';
 import { ApNoteService } from './models/ApNoteService.js';
 import { ApLoggerService } from './ApLoggerService.js';
 import { ApDbResolverService } from './ApDbResolverService.js';
@@ -87,6 +88,7 @@ export class ApInboxService {
 		private apQuestionService: ApQuestionService,
 		private queueService: QueueService,
 		private messagingService: MessagingService,
+		private globalEventService: GlobalEventService,
 	) {
 		this.logger = this.apLoggerService.logger;
 	}
@@ -301,11 +303,14 @@ export class ApInboxService {
 		const meta = await this.metaService.fetch();
 		if (this.utilityService.isBlockedHost(meta.blockedHosts, this.utilityService.extractDbHost(uri))) return;
 
+		const relays = await this.relayService.getAcceptedRelays();
+		const fromRelay = !!actor.inbox && relays.map(r => r.inbox).includes(actor.inbox);
+
 		const unlock = await this.appLockService.getApLock(uri);
 
 		try {
 			// 既に同じURIを持つものが登録されていないかチェック
-			const exist = await this.apNoteService.fetchNote(uri);
+			const exist = await this.apNoteService.fetchNote(fromRelay ? targetUri : uri);
 			if (exist) {
 				return;
 			}
@@ -333,6 +338,12 @@ export class ApInboxService {
 				return;
 			}
 
+			if (fromRelay) {
+				const noteObj = await this.noteEntityService.pack(renote);
+				this.globalEventService.publishNotesStream(noteObj);
+				return;
+			}
+
 			this.logger.info(`Creating the (Re)Note: ${uri}`);
 
 			const activityAudience = await this.apAudienceService.parseAudience(actor, activity.to, activity.cc);