diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2e6702a92..0a41c2cef4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@
 - Enhance: サウンドにドライブのファイルを使用できるように
 - Enhance: Shareページで投稿を完了すると、親ウィンドウ（親フレーム）にpostMessageするように
 - Enhance: チャンネル、クリップ、ページ、Play、ギャラリーにURLのコピーボタンを設置 #11305
+- Enhance: ノートプレビューに「内容を隠す」が反映されるように
 - fix: 「設定のバックアップ」で一部の項目がバックアップに含まれていなかった問題を修正
 - Fix: ウィジェットのジョブキューにて音声の発音方法変更に追従できていなかったのを修正 #12367
 - Fix: コードエディタが正しく表示されない問題を修正
diff --git a/packages/frontend/src/components/MkCwButton.vue b/packages/frontend/src/components/MkCwButton.vue
index 0cdaf7c9bd..70b7bc8295 100644
--- a/packages/frontend/src/components/MkCwButton.vue
+++ b/packages/frontend/src/components/MkCwButton.vue
@@ -16,7 +16,22 @@ import MkButton from '@/components/MkButton.vue';
 
 const props = defineProps<{
 	modelValue: boolean;
-	note: Misskey.entities.Note;
+	text: string | null;
+	files: Misskey.entities.DriveFile[];
+	poll?: {
+		expiresAt: string | null;
+		multiple: boolean;
+		choices: {
+			isVoted: boolean;
+			text: string;
+			votes: number;
+		}[];
+	} | {
+		choices: string[];
+		multiple: boolean;
+		expiresAt: string | null;
+		expiredAfter: string | null;
+	};
 }>();
 
 const emit = defineEmits<{
@@ -25,9 +40,9 @@ const emit = defineEmits<{
 
 const label = computed(() => {
 	return concat([
-		props.note.text ? [i18n.t('_cw.chars', { count: props.note.text.length })] : [],
-		props.note.files && props.note.files.length !== 0 ? [i18n.t('_cw.files', { count: props.note.files.length })] : [],
-		props.note.poll != null ? [i18n.ts.poll] : [],
+		props.text ? [i18n.t('_cw.chars', { count: props.text.length })] : [],
+		props.files.length !== 0 ? [i18n.t('_cw.files', { count: props.files.length })] : [],
+		props.poll != null ? [i18n.ts.poll] : [],
 	] as string[][]).join(' / ');
 });
 
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index 04fe8d52fb..596895efb9 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -54,7 +54,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<div style="container-type: inline-size;">
 				<p v-if="appearNote.cw != null" :class="$style.cw">
 					<Mfm v-if="appearNote.cw != ''" style="margin-right: 8px;" :text="appearNote.cw" :author="appearNote.user" :nyaize="'respect'"/>
-					<MkCwButton v-model="showContent" :note="appearNote" style="margin: 4px 0;"/>
+					<MkCwButton v-model="showContent" :text="appearNote.text" :files="appearNote.files" :poll="appearNote.poll" style="margin: 4px 0;"/>
 				</p>
 				<div v-show="appearNote.cw == null || showContent" :class="[{ [$style.contentCollapsed]: collapsed }]">
 					<div :class="$style.text">
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index d8089ac36f..31e97b6aaa 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -68,7 +68,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<div :class="$style.noteContent">
 			<p v-if="appearNote.cw != null" :class="$style.cw">
 				<Mfm v-if="appearNote.cw != ''" style="margin-right: 8px;" :text="appearNote.cw" :author="appearNote.user" :nyaize="'respect'"/>
-				<MkCwButton v-model="showContent" :note="appearNote"/>
+				<MkCwButton v-model="showContent" :text="appearNote.text" :files="appearNote.files" :poll="appearNote.poll"/>
 			</p>
 			<div v-show="appearNote.cw == null || showContent">
 				<span v-if="appearNote.isHidden" style="opacity: 0.5">({{ i18n.ts.private }})</span>
diff --git a/packages/frontend/src/components/MkNotePreview.vue b/packages/frontend/src/components/MkNotePreview.vue
index 9b7a39b537..d664d88231 100644
--- a/packages/frontend/src/components/MkNotePreview.vue
+++ b/packages/frontend/src/components/MkNotePreview.vue
@@ -11,7 +11,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<MkUserName :user="user" :nowrap="true"/>
 		</div>
 		<div>
-			<div>
+			<p v-if="useCw" :class="$style.cw">
+				<Mfm v-if="cw != ''" :text="cw" :author="user" :nyaize="'respect'" :i="user" style="margin-right: 8px;"/>
+				<MkCwButton v-model="showContent" :text="text.trim()" :files="files" :poll="poll" style="margin: 4px 0;"/>
+			</p>
+			<div v-show="!useCw || showContent">
 				<Mfm :text="text.trim()" :author="user" :nyaize="'respect'" :i="user"/>
 			</div>
 		</div>
@@ -20,11 +24,23 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import * as Misskey from 'misskey-js';
+import MkCwButton from '@/components/MkCwButton.vue';
+
+const showContent = ref(false);
 
 const props = defineProps<{
 	text: string;
+	files: Misskey.entities.DriveFile[];
+	poll?: {
+		choices: string[];
+		multiple: boolean;
+		expiresAt: string | null;
+		expiredAfter: string | null;
+	};
+	useCw: boolean;
+	cw: string | null;
 	user: Misskey.entities.User;
 }>();
 </script>
@@ -53,6 +69,14 @@ const props = defineProps<{
 	min-width: 0;
 }
 
+.cw {
+	cursor: default;
+	display: block;
+	margin: 0;
+	padding: 0;
+	overflow-wrap: break-word;
+}
+
 .header {
 	margin-bottom: 2px;
 	font-weight: bold;
diff --git a/packages/frontend/src/components/MkNoteSimple.vue b/packages/frontend/src/components/MkNoteSimple.vue
index a40dcaf003..f3ab6b2723 100644
--- a/packages/frontend/src/components/MkNoteSimple.vue
+++ b/packages/frontend/src/components/MkNoteSimple.vue
@@ -11,7 +11,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<div>
 			<p v-if="note.cw != null" :class="$style.cw">
 				<Mfm v-if="note.cw != ''" style="margin-right: 8px;" :text="note.cw" :author="note.user" :nyaize="'respect'" :emojiUrls="note.emojis"/>
-				<MkCwButton v-model="showContent" :note="note"/>
+				<MkCwButton v-model="showContent" :text="note.text" :files="note.files" :poll="note.poll"/>
 			</p>
 			<div v-show="note.cw == null || showContent">
 				<MkSubNoteContent :class="$style.text" :note="note"/>
diff --git a/packages/frontend/src/components/MkNoteSub.vue b/packages/frontend/src/components/MkNoteSub.vue
index 422e9094cc..1e901a1fd6 100644
--- a/packages/frontend/src/components/MkNoteSub.vue
+++ b/packages/frontend/src/components/MkNoteSub.vue
@@ -13,7 +13,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<div>
 				<p v-if="note.cw != null" :class="$style.cw">
 					<Mfm v-if="note.cw != ''" style="margin-right: 8px;" :text="note.cw" :author="note.user" :nyaize="'respect'"/>
-					<MkCwButton v-model="showContent" :note="note"/>
+					<MkCwButton v-model="showContent" :text="note.text" :files="note.files" :poll="note.poll"/>
 				</p>
 				<div v-show="note.cw == null || showContent">
 					<MkSubNoteContent :class="$style.text" :note="note"/>
diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index d163ea2487..07c7213202 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -73,7 +73,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	<input v-show="withHashtags" ref="hashtagsInputEl" v-model="hashtags" :class="$style.hashtags" :placeholder="i18n.ts.hashtags" list="hashtags">
 	<XPostFormAttaches v-model="files" @detach="detachFile" @changeSensitive="updateFileSensitive" @changeName="updateFileName" @replaceFile="replaceFile"/>
 	<MkPollEditor v-if="poll" v-model="poll" @destroyed="poll = null"/>
-	<MkNotePreview v-if="showPreview" :class="$style.preview" :text="text" :user="postAccount ?? $i"/>
+	<MkNotePreview v-if="showPreview" :class="$style.preview" :text="text" :files="files" :poll="poll ?? undefined" :useCw="useCw" :cw="cw" :user="postAccount ?? $i"/>
 	<div v-if="showingOptions" style="padding: 8px 16px;">
 	</div>
 	<footer :class="$style.footer">