diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatMessageController.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatMessageController.java
index 88b49dce..83d1b86b 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatMessageController.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatMessageController.java
@@ -39,7 +39,7 @@ public void getInitialCount(@Payload Map<String, Object> payload) {
 			Long concertId = Long.valueOf(concertIdObj.toString());
 			log.info("[CHAT STATUS] 인원수 초기 요청 수신: concertId={}", concertId);
 
-			chatMessageService.broadcastUserCount(concertId);
+			chatMessageService.broadcastUser(concertId);
 		}
 	}
 }
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatStompDocsController.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatStompDocsController.java
index e3ef3700..09ad4ace 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatStompDocsController.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/controller/ChatStompDocsController.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.parameters.RequestBody;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.tags.Tag;
 
@@ -21,57 +22,59 @@ public class ChatStompDocsController {
 	@Operation(
 		summary = "채팅 메시지 전송 (WebSocket / STOMP 채팅 프로토콜 문서. 문서용 API. 사용X)",
 		description = """
-        ### 📡 WebSocket STOMP 채팅 메시지 전송
-
-        #### 1️⃣ WebSocket Endpoint
-        ```
-        ws://localhost:8080/ws-chat
-        or
-        wss://api.naeconcertbutakhae.shop/ws-chat
-        ```
-
-        #### 2️⃣ SEND Destination
-        ```
-        /app/chat/send
-        ```
-
-        #### 3️⃣ SUBSCRIBE Destination
-        ```
-        /topic/chat/{concertId}
-        ```
-
-        #### 4️⃣ SEND Payload
-        ```json
-        {
-          "concertId": 1,
-          "content": "안녕하세요!"
-        }
-        ```
-
-        #### 5️⃣ SUBSCRIBE Response
-        ```json
-        {
-          "concertId": 1,
-          "senderId": 10,
-          "senderName": "테스트 유저",
-          "content": "안녕하세요!",
-          "sentAt": "2025-12-23T15:30:00"
-        }
-        ```
-        """
+			### 📡 WebSocket STOMP 채팅 메시지 전송
+
+			#### 1️⃣ WebSocket Endpoint
+			```
+			ws://localhost:8080/ws-chat
+			or
+			wss://api.naeconcertbutakhae.shop/ws-chat
+			```
+
+			#### 2️⃣ SEND Destination
+			```
+			/app/chat/send
+			```
+
+			#### 3️⃣ SUBSCRIBE Destination
+			```
+			/topic/chat/{concertId}
+			```
+
+			#### 4️⃣ SEND Payload
+			```json
+			{
+			  concertId: 1,
+			  content: "안녕하세요!"
+			}
+			```
+
+			#### 5️⃣ SUBSCRIBE Response
+			```json
+			{
+			  concertId: 1,
+			  senderId: 2,
+			  senderName: "테스트 유저",
+			  content: "안녕하세요!",
+			  sentDate: "2026-01-02T12:13:18.4422905",
+			  profileImage: "https://example.com/profile.jpg"
+			}
+			```
+			"""
 	)
 	@GetMapping("/stomp")
-	public void stompChatGuide() {}
+	public void stompChatGuide() {
+	}
 
 	@Operation(
 		summary = "STOMP 채팅 메시지 전송 규격(문서용 API. 사용X)",
 		description = """
-        WebSocket + STOMP 기반 채팅 메시지 전송 규격입니다.
+			WebSocket + STOMP 기반 채팅 메시지 전송 규격입니다.
 
-        - 실제 사용되는 HTTP API 아닙니다.
-        - Swagger 문서용
-        """,
-		requestBody = @io.swagger.v3.oas.annotations.parameters.RequestBody(
+			- 실제 사용되는 HTTP API 아닙니다.
+			- Swagger 문서용
+			""",
+		requestBody = @RequestBody(
 			description = "STOMP 메세지 SEND하면 전달되는 요청 데이터",
 			required = true,
 			content = @Content(
@@ -93,57 +96,93 @@ public ChatMessageResponse messageSchema() {
 		return null; // 실제 반환 목적 X
 	}
 
-
 	@Operation(
 		summary = "실시간 채팅 접속자 수 집계 (STOMP 전용, 문서용 API. 사용X)",
 		description = """
-        ### 👥 실시간 채팅 접속자 수 집계
-
-        - 동일 유저의 여러 탭은 **1명으로 집계**
-        - 모든 탭이 닫혔을 때만 접속자 수 감소
-        - 접속 / 퇴장 / 초기 요청 시 자동 브로드캐스트
-
-        ---
-
-        ### 1️⃣ CONNECT 시 자동 집계
-        - STOMP CONNECT 시 `concertId` 기준으로 접속자 등록
-        - 접속 즉시 현재 인원 수가 브로드캐스트됩니다.
-
-        ### 2️⃣ 초기 접속자 수 요청 (SEND)
-        ```
-        /app/chat/status
-        ```
-
-        #### SEND Payload
-        - 접속자 수 집계를 위해 `concertId`를 CONNECT 헤더로 전달
-        ```json
-        {
-          "concertId": 1
-        }
-        ```
-
-        - 채팅방 최초 진입 시 프론트에서 1회 호출
-        - 서버가 Redis 기준 현재 접속자 수 계산 후 브로드캐스트
-
-        ### 3️⃣ SUBSCRIBE Destination
-        ```
-        /topic/chat/{concertId}/count
-        ```
-
-        #### SUBSCRIBE Response
-        ```json
-        5
-        ```
-
-        - 숫자(Number) 형태의 현재 접속자 수
-        - 접속 / 퇴장 / 초기 요청 시마다 자동 수신
-
-        ### 4️⃣ DISCONNECT 처리
-        - STOMP DISCONNECT 시 자동 처리
-        - 동일 유저의 모든 탭이 닫힌 경우에만 접속자 수 감소
-        """
+			### 👥 실시간 채팅 접속자 수 집계
+			- 동일 유저의 여러 탭은 **1명으로 집계**
+			- 모든 탭이 닫혔을 때만 접속자 수 감소
+			- 접속 / 퇴장 / 초기 요청 시 자동 브로드캐스트
+
+			#### 1️⃣ CONNECT 시 자동 집계
+			- STOMP CONNECT 시 `concertId` 기준으로 접속자 등록
+			- 접속 즉시 현재 인원 수가 브로드캐스트됩니다.
+			        
+			#### CONNECT Header
+			- 접속자 수 집계를 위해 `concertId`를 CONNECT 헤더로 전달
+			```text
+			concertId: 1
+			```
+
+			#### 2️⃣ 초기 접속자 수 요청 (SEND)
+			```
+			/app/chat/status
+			```
+
+			#### 3️⃣ SUBSCRIBE Destination
+			```
+			/topic/chat/{concertId}/count
+			```
+
+			#### SUBSCRIBE Response
+			```json
+			5
+			```
+
+			- 숫자(Number) 형태의 현재 접속자 수
+			- 접속 / 퇴장 / 초기 요청 시마다 자동 수신
+
+			#### 4️⃣ DISCONNECT 처리
+			- STOMP DISCONNECT 시 자동 처리
+			- 동일 유저의 모든 탭이 닫힌 경우에만 접속자 수 감소
+			"""
 	)
 	@GetMapping("/user-count")
-	public void chatUserCountGuide() {}
+	public void chatUserCountGuide() {
+	}
+
+	@Operation(
+		summary = "실시간 채팅 참여자 목록 조회 (STOMP 전용, 문서용 API. 사용X)",
+		description = """
+			### 👤 실시간 채팅 참여자 목록
+			- 현재 채팅방에 **접속 중인 유저 목록**
+			- 동일 유저의 여러 탭은 **1명으로 집계**
+			- 접속 / 퇴장 / 초기 진입 시 자동 브로드캐스트
+
+			#### 1️⃣ CONNECT
+			- STOMP CONNECT 시 `concertId` 헤더 전달
+			- 서버는 해당 채팅방 Presence에 유저를 등록
+			     
+			#### CONNECT Headers
+			```text
+			concertId: number
+			```
+
+			#### 2️⃣ SUBSCRIBE Destination
+			```
+			/topic/chat/{concertId}/users
+			```
+
+			#### 3️⃣ SUBSCRIBE Response
+			```json
+			[
+				{
+				  "userId": 1,
+				  "nickname": "어드민유저",
+				  "profileImage": "https://example.com/profile/1.png"
+				},
+				{
+				  "userId": 2,
+				  "nickname": "테스트유저",
+				  "profileImage": "https://example.com/profile/2.png"
+				}
+			]
+			```
+			- Array 형태의 참여자 목록
+			"""
+	)
+	@GetMapping("/users")
+	public void chatUserListGuide() {
+	}
 }
 
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatMessageResponse.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatMessageResponse.java
index 7c06e591..70579dca 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatMessageResponse.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatMessageResponse.java
@@ -15,12 +15,19 @@ public class ChatMessageResponse {
 
 	@Schema(description = "공연 ID", example = "1")
 	private Long concertId;
+
 	@Schema(description = "발신자 ID", example = "2")
 	private Long senderId;
+
 	@Schema(description = "발신자 닉네임", example = "테스트 유저")
 	private String senderName;
+
 	@Schema(description = "메시지 내용", example = "안녕하세요")
 	private String content;
+
 	@Schema(description = "전송 시각", example = "2025-12-23T16:28:07.8806432")
 	private LocalDateTime sentDate;
+
+	@Schema(description = "프로필 이미지 URL", example = "https://example.com/profile.jpg")
+	private String profileImage;
 }
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatParticipantResponse.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatParticipantResponse.java
new file mode 100644
index 00000000..27c02c31
--- /dev/null
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatParticipantResponse.java
@@ -0,0 +1,19 @@
+package com.back.web7_9_codecrete_be.domain.chats.dto.response;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class ChatParticipantResponse {
+
+	@Schema(description = "유저 ID", example = "1")
+	private Long userId;
+
+	@Schema(description = "유저 닉네임", example = "테스트 유저")
+	private String nickname;
+
+	@Schema(description = "프로필 이미지 URL", example = "https://example.com/profile/1.png")
+	private String profileImage;
+}
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatReadResponse.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatReadResponse.java
index 1eb9a529..5c8a3f33 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatReadResponse.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatReadResponse.java
@@ -30,6 +30,9 @@ public class ChatReadResponse {
 	@Schema(description = "메시지 내용", example = "안녕하세요")
 	private String content;
 
-	@Schema(description = "전송 시각")
+	@Schema(description = "전송 시각", example = "2026-01-02T12:13:13.1588173")
 	private LocalDateTime sentDate;
+
+	@Schema(description = "프로필 이미지 URL", example = "https://example.com/profile.jpg")
+	private String profileImage;
 }
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatUserCache.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatUserCache.java
index 772a78fe..91ffc763 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatUserCache.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/dto/response/ChatUserCache.java
@@ -11,4 +11,5 @@ public class ChatUserCache {
 
 	private Long userId;
 	private String nickname;
+	private String profileImage;
 }
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/repository/ChatStreamRepository.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/repository/ChatStreamRepository.java
index b628f644..032fe4e8 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/repository/ChatStreamRepository.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/repository/ChatStreamRepository.java
@@ -39,6 +39,7 @@ public void save(ChatMessageResponse message) {
 		fields.put("senderName", message.getSenderName());
 		fields.put("content", message.getContent());
 		fields.put("sentDate", message.getSentDate().toString());
+		fields.put("profileImage", message.getProfileImage());
 
 		redisTemplate.opsForStream().add(
 			StreamRecords.newRecord()
@@ -106,7 +107,8 @@ private List<ChatReadResponse> toResponses(
 					Long.valueOf(v.get("senderId").toString()),
 					v.get("senderName").toString(),
 					v.get("content").toString(),
-					LocalDateTime.parse(v.get("sentDate").toString())
+					LocalDateTime.parse(v.get("sentDate").toString()),
+					v.get("profileImage").toString()
 				);
 			})
 			.filter(Objects::nonNull)
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatMessageService.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatMessageService.java
index 1a3a35fc..be742710 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatMessageService.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatMessageService.java
@@ -14,7 +14,6 @@
 import com.back.web7_9_codecrete_be.domain.chats.dto.response.ChatUserCache;
 import com.back.web7_9_codecrete_be.domain.chats.repository.ChatStreamRepository;
 import com.back.web7_9_codecrete_be.global.security.CustomUserDetail;
-import com.back.web7_9_codecrete_be.global.websocket.ChatCountBroadcaster;
 import com.back.web7_9_codecrete_be.global.websocket.ServerInstanceId;
 
 import lombok.RequiredArgsConstructor;
@@ -30,7 +29,7 @@ public class ChatMessageService {
 	private final ChatUserCacheService chatUserCacheService;
 
 	private final RedisTemplate<String, Object> redisTemplate;
-	private final ChatCountBroadcaster chatCountBroadcaster;
+	private final ChatPresenceService chatPresenceService;
 
 	/**
 	 * 채팅 메시지 전송 + 세션 TTL 갱신
@@ -63,7 +62,8 @@ private void sendMessage(ChatMessageRequest request, String email) {
 			chatUser.getUserId(),
 			chatUser.getNickname(),
 			request.getContent(),
-			LocalDateTime.now()
+			LocalDateTime.now(),
+			chatUser.getProfileImage()
 		);
 
 		log.info("[SEND MESSAGE] From User ID: {}, Content: {}",
@@ -96,14 +96,8 @@ private void extendUserSessionTtl(Long userId) {
 	/**
 	 * 채팅방 접속자 수 브로드캐스트
 	 */
-	public void broadcastUserCount(Long concertId) {
+	public void broadcastUser(Long concertId) {
 
-		String key = "chat:concert:" + concertId + ":users";
-		Long count = redisTemplate.opsForSet().size(key);
-		long userCount = (count != null) ? count : 0;
-
-		chatCountBroadcaster.broadcast(concertId, userCount);
-
-		log.info("[CHAT STATUS] 인원수 응답 완료: concertId={}, count={}", concertId, userCount);
+		chatPresenceService.broadcast(concertId);
 	}
 }
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatParticipantService.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatParticipantService.java
new file mode 100644
index 00000000..f4c8edc4
--- /dev/null
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatParticipantService.java
@@ -0,0 +1,50 @@
+package com.back.web7_9_codecrete_be.domain.chats.service;
+
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Service;
+
+import com.back.web7_9_codecrete_be.domain.chats.dto.response.ChatParticipantResponse;
+import com.back.web7_9_codecrete_be.domain.users.entity.User;
+import com.back.web7_9_codecrete_be.domain.users.repository.UserRepository;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class ChatParticipantService {
+
+	private final RedisTemplate<String, Object> redisTemplate;
+	private final UserRepository userRepository;
+
+	private String concertUserKey(Long concertId) {
+		return "chat:concert:" + concertId + ":users";
+	}
+
+	public List<ChatParticipantResponse> getParticipants(Long concertId) {
+
+		Set<Object> userIds =
+			redisTemplate.opsForSet().members(concertUserKey(concertId));
+
+		if (userIds == null || userIds.isEmpty()) {
+			return List.of();
+		}
+
+		List<Long> ids = userIds.stream()
+			.map(id -> Long.valueOf(id.toString()))
+			.toList();
+
+		List<User> users = userRepository.findAllById(ids);
+
+		return users.stream()
+			.map(user -> new ChatParticipantResponse(
+				user.getId(),
+				user.getNickname(),
+				user.getProfileImage()
+			))
+			.collect(Collectors.toList());
+	}
+}
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatPresenceService.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatPresenceService.java
new file mode 100644
index 00000000..571d4add
--- /dev/null
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatPresenceService.java
@@ -0,0 +1,37 @@
+package com.back.web7_9_codecrete_be.domain.chats.service;
+
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Service;
+
+import com.back.web7_9_codecrete_be.global.websocket.ChatStompBroadcaster;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class ChatPresenceService {
+
+	private final RedisTemplate<String, Object> redisTemplate;
+	private final ChatParticipantService chatParticipantService;
+	private final ChatStompBroadcaster chatStompBroadcaster;
+
+	private String concertUserKey(Long concertId) {
+		return "chat:concert:" + concertId + ":users";
+	}
+
+	public void broadcast(Long concertId) {
+
+		Long count =
+			redisTemplate.opsForSet().size(concertUserKey(concertId));
+
+		chatStompBroadcaster.broadcast(
+			"/topic/chat/" + concertId + "/count",
+			count != null ? count : 0
+		);
+
+		chatStompBroadcaster.broadcast(
+			"/topic/chat/" + concertId + "/users",
+			chatParticipantService.getParticipants(concertId)
+		);
+	}
+}
diff --git a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatUserCacheService.java b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatUserCacheService.java
index 3ed517c4..9f6a3a36 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatUserCacheService.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/domain/chats/service/ChatUserCacheService.java
@@ -41,7 +41,8 @@ public ChatUserCache getChatUser(String email) {
 
 		ChatUserCache cache = new ChatUserCache(
 			user.getId(),
-			user.getNickname()
+			user.getNickname(),
+			user.getProfileImage()
 		);
 
 		redisTemplate.opsForValue().set(key, cache, ttl);
diff --git a/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatCountBroadcaster.java b/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatStompBroadcaster.java
similarity index 76%
rename from src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatCountBroadcaster.java
rename to src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatStompBroadcaster.java
index 050d64ac..166275ae 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatCountBroadcaster.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatStompBroadcaster.java
@@ -8,11 +8,11 @@
 
 @Component
 @RequiredArgsConstructor
-public class ChatCountBroadcaster {
+public class ChatStompBroadcaster {
 
 	private final ObjectProvider<SimpMessagingTemplate> messagingTemplateProvider;
 
-	public void broadcast(Long concertId, long count) {
+	public void broadcast(String destination, Object payload) {
 
 		SimpMessagingTemplate messagingTemplate =
 			messagingTemplateProvider.getIfAvailable();
@@ -21,10 +21,7 @@ public void broadcast(Long concertId, long count) {
 			return; // WebSocket 브로커 아직 준비 안 됨
 		}
 
-		messagingTemplate.convertAndSend(
-			"/topic/chat/" + concertId + "/count",
-			count
-		);
+		messagingTemplate.convertAndSend(destination, payload);
 	}
 }
 
diff --git a/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatStompHandler.java b/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatStompHandler.java
index a166e96e..d7ec3659 100644
--- a/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatStompHandler.java
+++ b/src/main/java/com/back/web7_9_codecrete_be/global/websocket/ChatStompHandler.java
@@ -12,6 +12,7 @@
 import org.springframework.security.core.Authentication;
 import org.springframework.stereotype.Component;
 
+import com.back.web7_9_codecrete_be.domain.chats.service.ChatPresenceService;
 import com.back.web7_9_codecrete_be.global.security.CustomUserDetail;
 import com.back.web7_9_codecrete_be.global.security.JwtTokenProvider;
 
@@ -24,8 +25,8 @@
 public class ChatStompHandler implements ChannelInterceptor {
 
 	private final RedisTemplate<String, Object> redisTemplate;
-	private final ChatCountBroadcaster chatCountBroadcaster;
 	private final JwtTokenProvider jwtTokenProvider;
+	private final ChatPresenceService chatPresenceService;
 
 	private String getConcertUserKey(Long concertId) {
 		return "chat:concert:" + concertId + ":users";
@@ -90,7 +91,7 @@ private void handleConnect(StompHeaderAccessor accessor) {
 		// 공연별 접속자 유저 ID 목록(Set)에 추가 (Set -> 동일 유저는 한 번만 기록됨)
 		redisTemplate.opsForSet().add(getConcertUserKey(concertId), userId);
 
-		broadcast(concertId);
+		chatPresenceService.broadcast(concertId);
 
 		log.info("[CHAT CONNECT] 성공: concertId={}, userId={}, email={}",
 			concertId, userId, userDetail.getUsername());
@@ -119,12 +120,7 @@ private void handleDisconnect(StompHeaderAccessor accessor) {
 			log.info("[CHAT DISCONNECT] 탭 하나 종료 - userId={}, 남은 세션={}", userId, remainingSessions);
 		}
 
-		broadcast(concertId);
-	}
-
-	private void broadcast(Long concertId) {
-		Long count = redisTemplate.opsForSet().size(getConcertUserKey(concertId));
-		chatCountBroadcaster.broadcast(concertId, count != null ? count : 0);
+		chatPresenceService.broadcast(concertId);
 	}
 
 	private String extractTokenFromCookie(StompHeaderAccessor accessor) {
diff --git a/src/test/java/com/back/web7_9_codecrete_be/Web79CodecreteBeApplicationTests.java b/src/test/java/com/back/web7_9_codecrete_be/Web79CodecreteBeApplicationTests.java
index 72c8c491..05bdab39 100644
--- a/src/test/java/com/back/web7_9_codecrete_be/Web79CodecreteBeApplicationTests.java
+++ b/src/test/java/com/back/web7_9_codecrete_be/Web79CodecreteBeApplicationTests.java
@@ -4,7 +4,6 @@
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.test.context.ActiveProfiles;
 
-@ActiveProfiles("test")
 @SpringBootTest
 @ActiveProfiles("test")
 class Web79CodecreteBeApplicationTests {