diff --git a/.config/docker_example.yml b/.config/docker_example.yml
index f8124bc9df..13ecfac549 100644
--- a/.config/docker_example.yml
+++ b/.config/docker_example.yml
@@ -62,6 +62,14 @@ redis:
   #prefix: example-prefix
   #db: 1
 
+#redisForPubsub:
+#  host: redis
+#  port: 6379
+#  #family: 0  # 0=Both, 4=IPv4, 6=IPv6
+#  #pass: example-pass
+#  #prefix: example-prefix
+#  #db: 1
+
 #   ┌─────────────────────────────┐
 #───┘ Elasticsearch configuration └─────────────────────────────
 
diff --git a/.config/example.yml b/.config/example.yml
index 92b8726623..fbdb7b0241 100644
--- a/.config/example.yml
+++ b/.config/example.yml
@@ -62,6 +62,14 @@ redis:
   #prefix: example-prefix
   #db: 1
 
+#redisForPubsub:
+#  host: localhost
+#  port: 6379
+#  #family: 0  # 0=Both, 4=IPv4, 6=IPv6
+#  #pass: example-pass
+#  #prefix: example-prefix
+#  #db: 1
+
 #   ┌─────────────────────────────┐
 #───┘ Elasticsearch configuration └─────────────────────────────
 
diff --git a/.devcontainer/devcontainer.yml b/.devcontainer/devcontainer.yml
index 8a363a15dc..4cc7ae3b59 100644
--- a/.devcontainer/devcontainer.yml
+++ b/.devcontainer/devcontainer.yml
@@ -62,6 +62,14 @@ redis:
   #prefix: example-prefix
   #db: 1
 
+#redisForPubsub:
+#  host: redis
+#  port: 6379
+#  #family: 0  # 0=Both, 4=IPv4, 6=IPv6
+#  #pass: example-pass
+#  #prefix: example-prefix
+#  #db: 1
+
 #   ┌─────────────────────────────┐
 #───┘ Elasticsearch configuration └─────────────────────────────
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e52c4e0d01..28be3faff9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,7 @@
 	- 「UIのアニメーションを減らす」 (`reduceAnimation`) で猫耳を撫でられなくなります
 
 ### Server
+- イベント用Redisを別サーバーに分離できるように
 - サーバーの全体的なパフォーマンスを向上
 - ノート作成時のパフォーマンスを向上
 - アンテナのタイムライン取得時のパフォーマンスを向上
diff --git a/chart/files/default.yml b/chart/files/default.yml
index 4061ca3eb6..afaf8a162d 100644
--- a/chart/files/default.yml
+++ b/chart/files/default.yml
@@ -78,10 +78,19 @@ db:
 redis:
   host: localhost
   port: 6379
+  #family: 0  # 0=Both, 4=IPv4, 6=IPv6
   #pass: example-pass
   #prefix: example-prefix
   #db: 1
 
+#redisForPubsub:
+#  host: localhost
+#  port: 6379
+#  #family: 0  # 0=Both, 4=IPv4, 6=IPv6
+#  #pass: example-pass
+#  #prefix: example-prefix
+#  #db: 1
+
 #   ┌─────────────────────────────┐
 #───┘ Elasticsearch configuration └─────────────────────────────
 
diff --git a/packages/backend/check_connect.js b/packages/backend/check_connect.js
index ed429c0254..ef0a350fbf 100644
--- a/packages/backend/check_connect.js
+++ b/packages/backend/check_connect.js
@@ -1,8 +1,15 @@
+import Redis from 'ioredis';
 import { loadConfig } from './built/config.js';
-import { createRedisConnection } from './built/redis.js';
 
 const config = loadConfig();
-const redis = createRedisConnection(config);
+const redis = new Redis({
+	port: config.redis.port,
+	host: config.redis.host,
+	family: config.redis.family == null ? 0 : config.redis.family,
+	password: config.redis.pass,
+	keyPrefix: `${config.redis.prefix}:`,
+	db: config.redis.db ?? 0,
+});
 
 redis.on('connect', () => redis.disconnect());
 redis.on('error', (e) => {
diff --git a/packages/backend/src/GlobalModule.ts b/packages/backend/src/GlobalModule.ts
index 801f1db741..cb713b25ad 100644
--- a/packages/backend/src/GlobalModule.ts
+++ b/packages/backend/src/GlobalModule.ts
@@ -2,18 +2,15 @@ import { setTimeout } from 'node:timers/promises';
 import { Global, Inject, Module } from '@nestjs/common';
 import Redis from 'ioredis';
 import { DataSource } from 'typeorm';
-import { createRedisConnection } from '@/redis.js';
 import { DI } from './di-symbols.js';
 import { loadConfig } from './config.js';
 import { createPostgresDataSource } from './postgres.js';
 import { RepositoryModule } from './models/RepositoryModule.js';
 import type { Provider, OnApplicationShutdown } from '@nestjs/common';
 
-const config = loadConfig();
-
 const $config: Provider = {
 	provide: DI.config,
-	useValue: config,
+	useValue: loadConfig(),
 };
 
 const $db: Provider = {
@@ -28,18 +25,31 @@ const $db: Provider = {
 const $redis: Provider = {
 	provide: DI.redis,
 	useFactory: (config) => {
-		const redisClient = createRedisConnection(config);
-		return redisClient;
+		return new Redis({
+			port: config.redis.port,
+			host: config.redis.host,
+			family: config.redis.family == null ? 0 : config.redis.family,
+			password: config.redis.pass,
+			keyPrefix: `${config.redis.prefix}:`,
+			db: config.redis.db ?? 0,
+		});
 	},
 	inject: [DI.config],
 };
 
-const $redisSubscriber: Provider = {
-	provide: DI.redisSubscriber,
+const $redisForPubsub: Provider = {
+	provide: DI.redisForPubsub,
 	useFactory: (config) => {
-		const redisSubscriber = createRedisConnection(config);
-		redisSubscriber.subscribe(config.host);
-		return redisSubscriber;
+		const redis = new Redis({
+			port: config.redisForPubsub.port,
+			host: config.redisForPubsub.host,
+			family: config.redisForPubsub.family == null ? 0 : config.redisForPubsub.family,
+			password: config.redisForPubsub.pass,
+			keyPrefix: `${config.redisForPubsub.prefix}:`,
+			db: config.redisForPubsub.db ?? 0,
+		});
+		redis.subscribe(config.host);
+		return redis;
 	},
 	inject: [DI.config],
 };
@@ -47,14 +57,14 @@ const $redisSubscriber: Provider = {
 @Global()
 @Module({
 	imports: [RepositoryModule],
-	providers: [$config, $db, $redis, $redisSubscriber],
-	exports: [$config, $db, $redis, $redisSubscriber, RepositoryModule],
+	providers: [$config, $db, $redis, $redisForPubsub],
+	exports: [$config, $db, $redis, $redisForPubsub, RepositoryModule],
 })
 export class GlobalModule implements OnApplicationShutdown {
 	constructor(
 		@Inject(DI.db) private db: DataSource,
 		@Inject(DI.redis) private redisClient: Redis.Redis,
-		@Inject(DI.redisSubscriber) private redisSubscriber: Redis.Redis,
+		@Inject(DI.redisForPubsub) private redisForPubsub: Redis.Redis,
 	) {}
 
 	async onApplicationShutdown(signal: string): Promise<void> {
@@ -69,7 +79,7 @@ export class GlobalModule implements OnApplicationShutdown {
 		await Promise.all([
 			this.db.destroy(),
 			this.redisClient.disconnect(),
-			this.redisSubscriber.disconnect(),
+			this.redisForPubsub.disconnect(),
 		]);
 	}
 }
diff --git a/packages/backend/src/config.ts b/packages/backend/src/config.ts
index 73f45e92e1..e8554e5c84 100644
--- a/packages/backend/src/config.ts
+++ b/packages/backend/src/config.ts
@@ -33,6 +33,14 @@ export type Source = {
 		db?: number;
 		prefix?: string;
 	};
+	redisForPubsub?: {
+		host: string;
+		port: number;
+		family?: number;
+		pass: string;
+		db?: number;
+		prefix?: string;
+	};
 	elasticsearch: {
 		host: string;
 		port: number;
@@ -151,6 +159,7 @@ export function loadConfig() {
 		: null;
 
 	if (!config.redis.prefix) config.redis.prefix = mixin.host;
+	if (config.redisForPubsub == null) config.redisForPubsub = config.redis;
 
 	return Object.assign(config, mixin);
 }
diff --git a/packages/backend/src/core/AntennaService.ts b/packages/backend/src/core/AntennaService.ts
index 4bd3f39af2..35266ac16d 100644
--- a/packages/backend/src/core/AntennaService.ts
+++ b/packages/backend/src/core/AntennaService.ts
@@ -27,8 +27,8 @@ export class AntennaService implements OnApplicationShutdown {
 		@Inject(DI.redis)
 		private redisClient: Redis.Redis,
 
-		@Inject(DI.redisSubscriber)
-		private redisSubscriber: Redis.Redis,
+		@Inject(DI.redisForPubsub)
+		private redisForPubsub: Redis.Redis,
 
 		@Inject(DI.mutingsRepository)
 		private mutingsRepository: MutingsRepository,
@@ -52,12 +52,12 @@ export class AntennaService implements OnApplicationShutdown {
 		this.antennasFetched = false;
 		this.antennas = [];
 
-		this.redisSubscriber.on('message', this.onRedisMessage);
+		this.redisForPubsub.on('message', this.onRedisMessage);
 	}
 
 	@bindThis
 	public onApplicationShutdown(signal?: string | undefined) {
-		this.redisSubscriber.off('message', this.onRedisMessage);
+		this.redisForPubsub.off('message', this.onRedisMessage);
 	}
 
 	@bindThis
diff --git a/packages/backend/src/core/MetaService.ts b/packages/backend/src/core/MetaService.ts
index 4b792c083d..2b6160c82e 100644
--- a/packages/backend/src/core/MetaService.ts
+++ b/packages/backend/src/core/MetaService.ts
@@ -14,8 +14,8 @@ export class MetaService implements OnApplicationShutdown {
 	private intervalId: NodeJS.Timer;
 
 	constructor(
-		@Inject(DI.redisSubscriber)
-		private redisSubscriber: Redis.Redis,
+		@Inject(DI.redisForPubsub)
+		private redisForPubsub: Redis.Redis,
 
 		@Inject(DI.db)
 		private db: DataSource,
@@ -33,7 +33,7 @@ export class MetaService implements OnApplicationShutdown {
 			}, 1000 * 60 * 5);
 		}
 
-		this.redisSubscriber.on('message', this.onMessage);
+		this.redisForPubsub.on('message', this.onMessage);
 	}
 
 	@bindThis
@@ -122,6 +122,6 @@ export class MetaService implements OnApplicationShutdown {
 	@bindThis
 	public onApplicationShutdown(signal?: string | undefined) {
 		clearInterval(this.intervalId);
-		this.redisSubscriber.off('message', this.onMessage);
+		this.redisForPubsub.off('message', this.onMessage);
 	}
 }
diff --git a/packages/backend/src/core/RoleService.ts b/packages/backend/src/core/RoleService.ts
index 54e098ea52..3379f5af8b 100644
--- a/packages/backend/src/core/RoleService.ts
+++ b/packages/backend/src/core/RoleService.ts
@@ -64,8 +64,8 @@ export class RoleService implements OnApplicationShutdown {
 	public static NotAssignedError = class extends Error {};
 
 	constructor(
-		@Inject(DI.redisSubscriber)
-		private redisSubscriber: Redis.Redis,
+		@Inject(DI.redisForPubsub)
+		private redisForPubsub: Redis.Redis,
 
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
@@ -87,7 +87,7 @@ export class RoleService implements OnApplicationShutdown {
 		this.rolesCache = new MemorySingleCache<Role[]>(Infinity);
 		this.roleAssignmentByUserIdCache = new MemoryKVCache<RoleAssignment[]>(Infinity);
 
-		this.redisSubscriber.on('message', this.onMessage);
+		this.redisForPubsub.on('message', this.onMessage);
 	}
 
 	@bindThis
@@ -400,6 +400,6 @@ export class RoleService implements OnApplicationShutdown {
 
 	@bindThis
 	public onApplicationShutdown(signal?: string | undefined) {
-		this.redisSubscriber.off('message', this.onMessage);
+		this.redisForPubsub.off('message', this.onMessage);
 	}
 }
diff --git a/packages/backend/src/core/WebhookService.ts b/packages/backend/src/core/WebhookService.ts
index ac1e413de6..85594f8557 100644
--- a/packages/backend/src/core/WebhookService.ts
+++ b/packages/backend/src/core/WebhookService.ts
@@ -13,14 +13,14 @@ export class WebhookService implements OnApplicationShutdown {
 	private webhooks: Webhook[] = [];
 
 	constructor(
-		@Inject(DI.redisSubscriber)
-		private redisSubscriber: Redis.Redis,
+		@Inject(DI.redisForPubsub)
+		private redisForPubsub: Redis.Redis,
 
 		@Inject(DI.webhooksRepository)
 		private webhooksRepository: WebhooksRepository,
 	) {
 		//this.onMessage = this.onMessage.bind(this);
-		this.redisSubscriber.on('message', this.onMessage);
+		this.redisForPubsub.on('message', this.onMessage);
 	}
 
 	@bindThis
@@ -82,6 +82,6 @@ export class WebhookService implements OnApplicationShutdown {
 
 	@bindThis
 	public onApplicationShutdown(signal?: string | undefined) {
-		this.redisSubscriber.off('message', this.onMessage);
+		this.redisForPubsub.off('message', this.onMessage);
 	}
 }
diff --git a/packages/backend/src/di-symbols.ts b/packages/backend/src/di-symbols.ts
index 56ce755a1a..482e8f83e1 100644
--- a/packages/backend/src/di-symbols.ts
+++ b/packages/backend/src/di-symbols.ts
@@ -2,7 +2,7 @@ export const DI = {
 	config: Symbol('config'),
 	db: Symbol('db'),
 	redis: Symbol('redis'),
-	redisSubscriber: Symbol('redisSubscriber'),
+	redisForPubsub: Symbol('redisForPubsub'),
 
 	//#region Repositories
 	usersRepository: Symbol('usersRepository'),
diff --git a/packages/backend/src/redis.ts b/packages/backend/src/redis.ts
deleted file mode 100644
index 690f4715dd..0000000000
--- a/packages/backend/src/redis.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import Redis from 'ioredis';
-import { Config } from '@/config.js';
-
-export function createRedisConnection(config: Config): Redis.Redis {
-	return new Redis({
-		port: config.redis.port,
-		host: config.redis.host,
-		family: config.redis.family == null ? 0 : config.redis.family,
-		password: config.redis.pass,
-		keyPrefix: `${config.redis.prefix}:`,
-		db: config.redis.db ?? 0,
-	});
-}
diff --git a/packages/backend/src/server/api/StreamingApiServerService.ts b/packages/backend/src/server/api/StreamingApiServerService.ts
index bd2d436a23..e0e5b71a82 100644
--- a/packages/backend/src/server/api/StreamingApiServerService.ts
+++ b/packages/backend/src/server/api/StreamingApiServerService.ts
@@ -22,8 +22,8 @@ export class StreamingApiServerService {
 		@Inject(DI.config)
 		private config: Config,
 
-		@Inject(DI.redisSubscriber)
-		private redisSubscriber: Redis.Redis,
+		@Inject(DI.redisForPubsub)
+		private redisForPubsub: Redis.Redis,
 
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
@@ -81,7 +81,7 @@ export class StreamingApiServerService {
 				ev.emit(parsed.channel, parsed.message);
 			}
 
-			this.redisSubscriber.on('message', onRedisMessage);
+			this.redisForPubsub.on('message', onRedisMessage);
 
 			const main = new MainStreamConnection(
 				this.channelsService,
@@ -111,7 +111,7 @@ export class StreamingApiServerService {
 			connection.once('close', () => {
 				ev.removeAllListeners();
 				main.dispose();
-				this.redisSubscriber.off('message', onRedisMessage);
+				this.redisForPubsub.off('message', onRedisMessage);
 				if (intervalId) clearInterval(intervalId);
 			});