diff --git a/CHANGELOG.md b/CHANGELOG.md
index 58b9c4d0cd..0718150fc4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -66,6 +66,7 @@
   (Cherry-picked from https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/709)
 - Fix: User Webhookテスト機能のMock Payloadを修正  
 - Fix: アカウント削除のモデレーションログが動作していないのを修正 (#14996)  
+- Fix: リノートミュートが新規投稿通知に対して作用していなかった問題を修正
 
 ### Misskey.js
 - Fix: Stream初期化時、別途WebSocketを指定する場合の型定義を修正
diff --git a/packages/backend/src/core/NoteCreateService.ts b/packages/backend/src/core/NoteCreateService.ts
index 3647fa7231..56ddcefd7c 100644
--- a/packages/backend/src/core/NoteCreateService.ts
+++ b/packages/backend/src/core/NoteCreateService.ts
@@ -56,6 +56,7 @@ import { isReply } from '@/misc/is-reply.js';
 import { trackPromise } from '@/misc/promise-tracker.js';
 import { IdentifiableError } from '@/misc/identifiable-error.js';
 import { CollapsedQueue } from '@/misc/collapsed-queue.js';
+import { CacheService } from '@/core/CacheService.js';
 
 type NotificationType = 'reply' | 'renote' | 'quote' | 'mention';
 
@@ -217,6 +218,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 		private instanceChart: InstanceChart,
 		private utilityService: UtilityService,
 		private userBlockingService: UserBlockingService,
+		private cacheService: CacheService,
 	) {
 		this.updateNotesCountQueue = new CollapsedQueue(process.env.NODE_ENV !== 'test' ? 60 * 1000 * 5 : 0, this.collapseNotesCount, this.performUpdateNotesCount);
 	}
@@ -543,13 +545,21 @@ export class NoteCreateService implements OnApplicationShutdown {
 			this.followingsRepository.findBy({
 				followeeId: user.id,
 				notify: 'normal',
-			}).then(followings => {
+			}).then(async followings => {
 				if (note.visibility !== 'specified') {
+					const isPureRenote = this.isRenote(data) && !this.isQuote(data) ? true : false;
 					for (const following of followings) {
 						// TODO: ワードミュート考慮
-						this.notificationService.createNotification(following.followerId, 'note', {
-							noteId: note.id,
-						}, user.id);
+						let isRenoteMuted = false;
+						if (isPureRenote) {
+							const userIdsWhoMeMutingRenotes = await this.cacheService.renoteMutingsCache.fetch(following.followerId);
+							isRenoteMuted = userIdsWhoMeMutingRenotes.has(user.id);
+						}
+						if (!isRenoteMuted) {
+							this.notificationService.createNotification(following.followerId, 'note', {
+								noteId: note.id,
+							}, user.id);
+						}
 					}
 				}
 			});