diff --git a/CHANGELOG.md b/CHANGELOG.md
index 12796b00f9..5c3d73f681 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@
 - Fix: サーバー情報画面(`/instance-info/{domain}`)でブロックができないのを修正
 - Fix: 未読のお知らせの「わかった」をクリック・タップしてもその場で「わかった」が消えない問題を修正
 - Fix: iOSで画面を回転させるとテキストサイズが変わる問題を修正
+- Fix: word mute for sub note is not applied
 - Fix: タイムラインを下にスクロールしてノート画面に移動して再び戻ったら以前のスクロール位置を失う問題を修正
 
 ### Server
diff --git a/packages/frontend/src/components/MkNoteSub.vue b/packages/frontend/src/components/MkNoteSub.vue
index 8e84d3f50d..64cf476545 100644
--- a/packages/frontend/src/components/MkNoteSub.vue
+++ b/packages/frontend/src/components/MkNoteSub.vue
@@ -4,7 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<div :class="[$style.root, { [$style.children]: depth > 1 }]">
+<div v-if="!muted" :class="[$style.root, { [$style.children]: depth > 1 }]">
 	<div :class="$style.main">
 		<div v-if="note.channel" :class="$style.colorBar" :style="{ background: note.channel.color }"></div>
 		<MkAvatar :class="$style.avatar" :user="note.user" link preview/>
@@ -28,10 +28,19 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<MkA class="_link" :to="notePage(note)">{{ i18n.ts.continueThread }} <i class="ti ti-chevron-double-right"></i></MkA>
 	</div>
 </div>
+<div v-else :class="$style.muted" @click="muted = false">
+	<I18n :src="i18n.ts.userSaysSomething" tag="small">
+		<template #name>
+			<MkA v-user-preview="note.userId" :to="userPage(note.user)">
+				<MkUserName :user="note.user"/>
+			</MkA>
+		</template>
+	</I18n>
+</div>
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import * as misskey from 'misskey-js';
 import MkNoteHeader from '@/components/MkNoteHeader.vue';
 import MkSubNoteContent from '@/components/MkSubNoteContent.vue';
@@ -40,6 +49,9 @@ import { notePage } from '@/filters/note';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { $i } from '@/account';
+import { userPage } from "@/filters/user";
+import { checkWordMute } from "@/scripts/check-word-mute";
+import { defaultStore } from "@/store";
 
 const props = withDefaults(defineProps<{
 	note: misskey.entities.Note;
@@ -51,6 +63,8 @@ const props = withDefaults(defineProps<{
 	depth: 1,
 });
 
+const muted = ref(checkWordMute(props.note, $i, defaultStore.state.mutedWords));
+
 let showContent = $ref(false);
 let replies: misskey.entities.Note[] = $ref([]);
 
@@ -139,4 +153,12 @@ if (props.detail) {
 		}
 	}
 }
+
+.muted {
+	text-align: center;
+	padding: 8px !important;
+	border: 1px solid var(--divider);
+	margin: 8px 8px 0 8px;
+	border-radius: 8px;
+}
 </style>