diff --git a/locales/index.d.ts b/locales/index.d.ts
index 36897285c4..6397719d6c 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -1467,6 +1467,11 @@ export interface Locale {
                 "description": string;
                 "flavor": string;
             };
+            "_smashTestNotificationButton": {
+                "title": string;
+                "description": string;
+                "flavor": string;
+            };
         };
     };
     "_role": {
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index f9427e13ec..2f6c6ba13d 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1391,6 +1391,10 @@ _achievements:
       title: "Brain Diver"
       description: "Brain Diverへのリンクを投稿した"
       flavor: "Misskey-Misskey La-Tu-Ma"
+    _smashTestNotificationButton:
+      title: "セルフ通知破壊"
+      description: "通知テストを連打した"
+      flavor: "ほどほどにしておきましょう"
 
 _role:
   new: "ロールの作成"
diff --git a/packages/backend/src/core/AchievementService.ts b/packages/backend/src/core/AchievementService.ts
index aa810015ed..a35acd3680 100644
--- a/packages/backend/src/core/AchievementService.ts
+++ b/packages/backend/src/core/AchievementService.ts
@@ -85,6 +85,7 @@ export const ACHIEVEMENT_TYPES = [
 	'setNameToSyuilo',
 	'cookieClicked',
 	'brainDiver',
+	'smashTestNotificationButton',
 ] as const;
 
 @Injectable()
diff --git a/packages/frontend/src/scripts/achievements.ts b/packages/frontend/src/scripts/achievements.ts
index 8b3a518830..54242b330d 100644
--- a/packages/frontend/src/scripts/achievements.ts
+++ b/packages/frontend/src/scripts/achievements.ts
@@ -81,6 +81,7 @@ export const ACHIEVEMENT_TYPES = [
 	'setNameToSyuilo',
 	'cookieClicked',
 	'brainDiver',
+	'smashTestNotificationButton',
 ] as const;
 
 export const ACHIEVEMENT_BADGES = {
@@ -454,6 +455,11 @@ export const ACHIEVEMENT_BADGES = {
 		bg: 'linear-gradient(0deg, rgb(144, 224, 255), rgb(255, 168, 252))',
 		frame: 'bronze',
 	},
+	'smashTestNotificationButton': {
+		img: '/fluent-emoji/1f514.png',
+		bg: 'linear-gradient(0deg, rgb(187 183 59), rgb(255 143 77))',
+		frame: 'bronze',
+	},
 /* @see <https://github.com/misskey-dev/misskey/pull/10365#discussion_r1155511107>
 } as const satisfies Record<typeof ACHIEVEMENT_TYPES[number], {
 	img: string;
diff --git a/packages/frontend/src/scripts/test-notification.ts b/packages/frontend/src/scripts/test-notification.ts
index 0e8289e19e..217e2d71a5 100644
--- a/packages/frontend/src/scripts/test-notification.ts
+++ b/packages/frontend/src/scripts/test-notification.ts
@@ -6,6 +6,10 @@
 import * as Misskey from 'misskey-js';
 import * as os from '@/os';
 import { globalEvents } from '@/events';
+import { claimAchievement } from '@/scripts/achievements';
+
+let smashCount = 0;
+let smashTimer: number | null = null;
 
 /**
  * テスト通知を送信
@@ -31,4 +35,17 @@ export function testNotification(type: 'client' | 'server'): void {
 			globalEvents.emit('clientNotification', notification);
 			break;
 	}
+
+	// セルフ通知破壊 実績関連
+	smashCount++;
+	if (smashCount >= 7) {
+		claimAchievement('smashTestNotificationButton');
+		smashCount = 0;
+	}
+	if (smashTimer) {
+		clearTimeout(smashTimer);
+	}
+	smashTimer = window.setTimeout(() => {
+		smashCount = 0;
+	}, 300);
 }