diff --git a/src/main/generated/com/tasksprints/auction/domain/socket/model/QChatRoom.java b/src/main/generated/com/tasksprints/auction/domain/socket/model/QChatRoom.java
index c437dad..bbffb40 100644
--- a/src/main/generated/com/tasksprints/auction/domain/socket/model/QChatRoom.java
+++ b/src/main/generated/com/tasksprints/auction/domain/socket/model/QChatRoom.java
@@ -22,12 +22,12 @@ public class QChatRoom extends EntityPathBase<ChatRoom> {
 
     public final StringPath chatRoomId = createString("chatRoomId");
 
-    public final ListPath<Chatter, QChatter> chatters = this.<Chatter, QChatter>createList("chatters", Chatter.class, QChatter.class, PathInits.DIRECT2);
-
     public final NumberPath<Long> id = createNumber("id", Long.class);
 
     public final StringPath name = createString("name");
 
+    public final ListPath<com.tasksprints.auction.domain.user.model.User, com.tasksprints.auction.domain.user.model.QUser> users = this.<com.tasksprints.auction.domain.user.model.User, com.tasksprints.auction.domain.user.model.QUser>createList("users", com.tasksprints.auction.domain.user.model.User.class, com.tasksprints.auction.domain.user.model.QUser.class, PathInits.DIRECT2);
+
     public QChatRoom(String variable) {
         super(ChatRoom.class, forVariable(variable));
     }
diff --git a/src/main/generated/com/tasksprints/auction/domain/socket/model/QChatter.java b/src/main/generated/com/tasksprints/auction/domain/socket/model/QChatter.java
deleted file mode 100644
index 0113e8f..0000000
--- a/src/main/generated/com/tasksprints/auction/domain/socket/model/QChatter.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package com.tasksprints.auction.domain.socket.model;
-
-import static com.querydsl.core.types.PathMetadataFactory.*;
-
-import com.querydsl.core.types.dsl.*;
-
-import com.querydsl.core.types.PathMetadata;
-import javax.annotation.processing.Generated;
-import com.querydsl.core.types.Path;
-
-
-/**
- * QChatter is a Querydsl query type for Chatter
- */
-@Generated("com.querydsl.codegen.DefaultEntitySerializer")
-public class QChatter extends EntityPathBase<Chatter> {
-
-    private static final long serialVersionUID = 1660492673L;
-
-    public static final QChatter chatter = new QChatter("chatter");
-
-    public final StringPath chatterId = createString("chatterId");
-
-    public final StringPath sessionId = createString("sessionId");
-
-    public QChatter(String variable) {
-        super(Chatter.class, forVariable(variable));
-    }
-
-    public QChatter(Path<? extends Chatter> path) {
-        super(path.getType(), path.getMetadata());
-    }
-
-    public QChatter(PathMetadata metadata) {
-        super(Chatter.class, metadata);
-    }
-
-}
-
diff --git a/src/main/java/com/tasksprints/auction/api/socket/ChatController.java b/src/main/java/com/tasksprints/auction/api/socket/ChatController.java
index 9dcb732..6ce881f 100644
--- a/src/main/java/com/tasksprints/auction/api/socket/ChatController.java
+++ b/src/main/java/com/tasksprints/auction/api/socket/ChatController.java
@@ -1,6 +1,8 @@
 package com.tasksprints.auction.api.socket;
 
 import com.tasksprints.auction.domain.socket.dto.MessageDto;
+import com.tasksprints.auction.domain.socket.dto.MessageDto.MessageType;
+import com.tasksprints.auction.domain.socket.dto.WhisperDto;
 import lombok.RequiredArgsConstructor;
 import org.springframework.messaging.handler.annotation.MessageMapping;
 import org.springframework.messaging.simp.SimpMessageSendingOperations;
@@ -14,13 +16,22 @@ public class ChatController {
 
     @MessageMapping("/chat/message")
     public void message(MessageDto messageDto) {
-        if (MessageDto.MessageType.ENTER.equals(messageDto.getType())) {
+        if (MessageType.ENTER.equals(messageDto.getType())) {
             messageDto.setMessage(messageDto.getSender() + "님이 입장하셨습니다.");
         }
 
-        if (MessageDto.MessageType.LEAVE.equals(messageDto.getType())) {
+        if (MessageType.LEAVE.equals(messageDto.getType())) {
             messageDto.setMessage(messageDto.getSender() + "님이 퇴장하셨습니다.");
         }
-        simpMessageSendingOperations.convertAndSend("/sub/chat/room/" + messageDto.getRoomId(), messageDto);
+        simpMessageSendingOperations.convertAndSend("/topic/chat/room/" + messageDto.getRoomId(), messageDto);
+    }
+
+    @MessageMapping("/chat/message/whisper")
+    public void messageToOne(WhisperDto whisperDto) {
+        whisperDto.setMessage("[귓속말] " + whisperDto.getSender() + " : " + whisperDto.getMessage());
+        simpMessageSendingOperations.convertAndSend("/whisper/" + whisperDto.getReceiver(), whisperDto);
+        //유저 생성 시 "/whisper/{유저 email 또는 nickname}" 경로를 구독해야 귓속말이 가능
+        //유저가 보낼 때 받는 사람의 경로로 메시지를 전달 -> 받는 사람만 메시지를 볼 수 있음
+        //답장 또한 받은 사람이 보낼 사람의 경로로 메시지를 전달해 1대 1 채팅이 되도록 함
     }
 }
diff --git a/src/main/java/com/tasksprints/auction/api/socket/ChatRoomController.java b/src/main/java/com/tasksprints/auction/api/socket/ChatRoomController.java
index a8a8828..3f3844c 100644
--- a/src/main/java/com/tasksprints/auction/api/socket/ChatRoomController.java
+++ b/src/main/java/com/tasksprints/auction/api/socket/ChatRoomController.java
@@ -15,11 +15,6 @@ public class ChatRoomController {
 
     private final ChatService chatService;
 
-    @GetMapping("/chat/room")
-    public String chatRoomList(Model model) {
-        return "/chat/room";
-    } //채팅방 목록 화면
-
     @GetMapping("/chat/room/all")
     @ResponseBody
     public List<ChatRoom> chatRoomAll() {
@@ -32,12 +27,6 @@ public ChatRoom createChatRoom(@RequestParam("name") String name) {
         return chatService.createRoom(name);
     } //채팅방 생성
 
-    @GetMapping("/chat/room/enter/{chatRoomId}")
-    public String enterChatRoom(Model model, @PathVariable(value = "chatRoomId") String chatRoomId) {
-        model.addAttribute("chatRoomId", chatRoomId);
-        return "/chat/enter";
-    } //채팅방 입장 화면
-
     @GetMapping("/chat/room/{chatRoomId}")
     @ResponseBody
     public ChatRoom chatRoom(@PathVariable(value = "chatRoomId") String chatRoomId) {
diff --git a/src/main/java/com/tasksprints/auction/common/config/WebSockConfig.java b/src/main/java/com/tasksprints/auction/common/config/WebSockConfig.java
index b2cb4ae..2fd79b2 100644
--- a/src/main/java/com/tasksprints/auction/common/config/WebSockConfig.java
+++ b/src/main/java/com/tasksprints/auction/common/config/WebSockConfig.java
@@ -12,10 +12,16 @@
 @EnableWebSocketMessageBroker
 public class WebSockConfig implements WebSocketMessageBrokerConfigurer {
 
+    /*
+    /topic : 채팅방 전체 메시지 (공지) 경로
+    /bid : bid 메시지 (주로 bid 금액 업데이트 관련) 경로
+    /whisper : 귓속말 경로
+     */
+
     @Override
     public void configureMessageBroker(MessageBrokerRegistry brokerRegistry) {
-        brokerRegistry.enableSimpleBroker("/sub"); //server
-        brokerRegistry.setApplicationDestinationPrefixes("/pub"); //client
+        brokerRegistry.enableSimpleBroker("/topic", "/bid", "/whisper");
+        brokerRegistry.setApplicationDestinationPrefixes("/app");
     }
 
     @Override
diff --git a/src/main/java/com/tasksprints/auction/domain/socket/dto/MessageDto.java b/src/main/java/com/tasksprints/auction/domain/socket/dto/MessageDto.java
index dafed06..89250f2 100644
--- a/src/main/java/com/tasksprints/auction/domain/socket/dto/MessageDto.java
+++ b/src/main/java/com/tasksprints/auction/domain/socket/dto/MessageDto.java
@@ -17,7 +17,6 @@ public enum MessageType {
     private String sender;
     private String message;
 
-
     public void setMessage(String s) {
         this.message = s;
     }
diff --git a/src/main/java/com/tasksprints/auction/domain/socket/dto/WhisperDto.java b/src/main/java/com/tasksprints/auction/domain/socket/dto/WhisperDto.java
new file mode 100644
index 0000000..3e885a0
--- /dev/null
+++ b/src/main/java/com/tasksprints/auction/domain/socket/dto/WhisperDto.java
@@ -0,0 +1,22 @@
+package com.tasksprints.auction.domain.socket.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@AllArgsConstructor
+@NoArgsConstructor
+public class WhisperDto {
+
+    private String sender; //보내는 사람 email 또는 닉네임
+    private String receiver; //받는 사람 email 또는 닉네임
+    private String message;
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+}
+
+// email 은 unique 하기때문에 sender 와 receiver 로 사용 가능
+// 하지만 nickname 을 고유하게 설정해서 nickname 을 사용해도 좋을 것 같음
diff --git a/src/main/java/com/tasksprints/auction/domain/socket/model/ChatRoom.java b/src/main/java/com/tasksprints/auction/domain/socket/model/ChatRoom.java
index 54ec2d9..f32f792 100644
--- a/src/main/java/com/tasksprints/auction/domain/socket/model/ChatRoom.java
+++ b/src/main/java/com/tasksprints/auction/domain/socket/model/ChatRoom.java
@@ -1,5 +1,6 @@
 package com.tasksprints.auction.domain.socket.model;
 
+import com.tasksprints.auction.domain.user.model.User;
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.Builder;
@@ -27,13 +28,13 @@ public class ChatRoom {
     private String name;
 
     @OneToMany
-    @Column(name = "chatterList")
-    private List<Chatter> chatters;
+    @Column(name = "users")
+    private List<User> users;
 
     @Builder
     public ChatRoom(String name) {
         this.chatRoomId = UUID.randomUUID().toString();
         this.name = name;
-        this.chatters = new ArrayList<>();
+        this.users = new ArrayList<>();
     }
 }
diff --git a/src/main/java/com/tasksprints/auction/domain/socket/model/Chatter.java b/src/main/java/com/tasksprints/auction/domain/socket/model/Chatter.java
deleted file mode 100644
index 8f43191..0000000
--- a/src/main/java/com/tasksprints/auction/domain/socket/model/Chatter.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.tasksprints.auction.domain.socket.model;
-
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.Id;
-import lombok.AccessLevel;
-import lombok.Builder;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-
-@Entity
-@Getter
-@NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class Chatter {
-
-    @Id
-    @Column(name = "chatterId")
-    private String chatterId;
-
-    @Column(name = "sessionId")
-    private String sessionId;
-
-    @Builder
-    public Chatter(String id, String sessionId) {
-        this.chatterId = id;
-        this.sessionId = sessionId;
-    }
-}
diff --git a/src/main/java/com/tasksprints/auction/domain/socket/repository/ChatterRepository.java b/src/main/java/com/tasksprints/auction/domain/socket/repository/ChatterRepository.java
deleted file mode 100644
index 64b73b9..0000000
--- a/src/main/java/com/tasksprints/auction/domain/socket/repository/ChatterRepository.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package com.tasksprints.auction.domain.socket.repository;
-
-import com.tasksprints.auction.domain.socket.model.Chatter;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public interface ChatterRepository extends JpaRepository<Chatter, String> {
-}
diff --git a/src/main/resources/templates/chat/enter.html b/src/main/resources/templates/chat/enter.html
deleted file mode 100644
index 09707d0..0000000
--- a/src/main/resources/templates/chat/enter.html
+++ /dev/null
@@ -1,105 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-  <title>Websocket ChatRoom</title>
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
-
-  <!-- Bootstrap CSS -->
-  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
-</head>
-<body>
-<div class="container" id="pub">
-  <div>
-    <h2 id="roomName"></h2>
-    <button class="btn btn-primary" type="button" id="leaveButton">나가기</button>
-  </div>
-  <div class="input-group">
-    <div class="input-group-prepend">
-      <label class="input-group-text">내용</label>
-    </div>
-    <input type="text" class="form-control" id="messageInput">
-    <div class="input-group-append">
-      <button class="btn btn-primary" type="button" id="sendButton">보내기</button>
-    </div>
-  </div>
-  <ul class="list-group" id="messagesList">
-  </ul>
-</div>
-
-<!-- JavaScript -->
-<script src="https://cdn.jsdelivr.net/npm/sockjs-client@1/dist/sockjs.min.js"></script>
-<script src="https://cdn.jsdelivr.net/npm/stompjs@2.3.3/lib/stomp.min.js"></script>
-<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
-<script>
-  var sock = new SockJS('http://localhost:8080/ws-stomp');
-  var ws = Stomp.over(sock);
-  var reconnect = 0;
-
-  var roomId = localStorage.getItem('wschat.roomId');
-  var sender = localStorage.getItem('wschat.sender');
-  var room = {};
-  var messages = [];
-  console.log("Chat Room ID: " + roomId);
-
-  document.getElementById('sendButton').addEventListener('click', sendMessage);
-  document.getElementById('leaveButton').addEventListener('click', leaveChatRoom);
-  document.getElementById('messageInput').addEventListener('keypress', function(event) {
-      if (event.key === 'Enter') {
-          sendMessage();
-      }
-  });
-
-  function findRoom() {
-      axios.get('http://localhost:8080/chat/room/' + roomId).then(function(response) {
-          room = response.data;
-          document.getElementById('roomName').textContent = room.name;
-      });
-  }
-
-  function sendMessage() {
-      var messageInput = document.getElementById('messageInput');
-      var message = messageInput.value;
-       if (message) {
-          ws.send("/pub/chat/message", {}, JSON.stringify({type: 'TALK', roomId: roomId, sender: sender, message: message}));
-         messageInput.value = '';
-      }
-  }
-
-  function revMessage(rev) {
-      var messageList = document.getElementById('messagesList');
-      var newMessage = document.createElement('li');
-      newMessage.classList.add('list-group-item');
-      newMessage.textContent = (rev.type === 'ENTER' ? '[알림]' : rev.sender) + ' - ' + rev.message;
-      messageList.insertBefore(newMessage, messageList.firstChild);
-  }
-
-  function leaveChatRoom() {
-      ws.send("/pub/chat/message", {}, JSON.stringify({type: 'LEAVE', roomId: roomId, sender: sender, message: ''}));
-      window.location.href = "http://localhost:8080/chat/room";
-  }
-
-  function connect() {
-      ws.connect({}, function(frame) {
-          ws.subscribe("/sub/chat/room/" + roomId, function(message) {
-              var rev = JSON.parse(message.body);
-              revMessage(rev);
-          });
-          ws.send("/pub/chat/message", {}, JSON.stringify({type: 'ENTER', roomId: roomId, sender: sender}));
-      }, function(error) {
-          if (reconnect++ <= 5) {
-              setTimeout(function() {
-                  console.log("connection reconnect");
-                  sock = new SockJS("http://localhost:8080/ws-stomp");
-                  ws = Stomp.over(sock);
-                  connect();
-              }, 10 * 1000);
-          }
-      });
-  }
-
-  findRoom();
-  connect();
-</script>
-</body>
-</html>
diff --git a/src/main/resources/templates/chat/room.html b/src/main/resources/templates/chat/room.html
deleted file mode 100644
index 91d78e0..0000000
--- a/src/main/resources/templates/chat/room.html
+++ /dev/null
@@ -1,98 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-  <title>Websocket Chat</title>
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
-  <!-- CSS -->
-  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
-</head>
-<body>
-<div class="container" id="pub">
-  <div class="row">
-    <div class="col-md-12">
-      <h3>채팅방 리스트</h3>
-    </div>
-  </div>
-  <div class="input-group">
-    <div class="input-group-prepend">
-      <label class="input-group-text">방 제목</label>
-    </div>
-    <label for="room_name"></label><input type="text" class="form-control" id="room_name" />
-    <div class="input-group-append">
-      <button class="btn btn-primary" type="button" id="createRoomBtn">채팅방 개설</button>
-    </div>
-  </div>
-  <ul class="list-group" id="chatroomList">
-  </ul>
-</div>
-
-<!-- JavaScript -->
-<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
-<script>
-  document.addEventListener('DOMContentLoaded', function() {
-      const roomNameInput = document.getElementById('room_name');
-      const chatroomList = document.getElementById('chatroomList');
-      const createRoomBtn = document.getElementById('createRoomBtn');
-
-      // 채팅방 목록 로드
-      function findAllRoom() {
-          axios.get('http://localhost:8080/chat/room/all')
-              .then(response => {
-                  chatroomList.innerHTML = ''; // 리스트 초기화
-                  response.data.forEach(item => {
-                      const li = document.createElement('li');
-                      li.className = 'list-group-item list-group-item-action';
-                      li.textContent = item.name;
-                      li.addEventListener('click', () => enterRoom(item.chatRoomId));
-                      chatroomList.appendChild(li);
-                  });
-              });
-      }
-
-      // 채팅방 생성
-      function createRoom() {
-          const roomName = roomNameInput.value.trim();
-          if (roomName === "") {
-              alert("방 제목을 입력해 주십시요.");
-              return;
-          }
-          const params = new URLSearchParams();
-          params.append("name", roomName);
-          axios.post('http://localhost:8080/chat/room', params)
-              .then(response => {
-                  alert(response.data.name + " 방 개설에 성공하였습니다.");
-                  roomNameInput.value = '';
-                  findAllRoom();
-              })
-              .catch(() => {
-                  alert("채팅방 개설에 실패하였습니다.");
-              });
-      }
-
-      // 방에 들어가기
-      function enterRoom(roomId) {
-          const sender = prompt('대화명을 입력해 주세요.');
-          if (sender) {
-              localStorage.setItem('wschat.sender', sender);
-              localStorage.setItem('wschat.roomId', roomId); // >> localStorage 아닌 다른 방법 필요
-              window.location.href = "http://localhost:8080/chat/room/enter/" + roomId;
-          }
-      }
-
-      // Enter 키로 채팅방 생성하기
-      roomNameInput.addEventListener('keyup', function(event) {
-          if (event.key === 'Enter') {
-              createRoom();
-          }
-      });
-
-      // 버튼 클릭으로 채팅방 생성
-      createRoomBtn.addEventListener('click', createRoom);
-
-      // 페이지 로드 시 채팅방 목록 불러오기
-      findAllRoom();
-  });
-</script>
-</body>
-</html>