diff --git a/src/Controller/Client.java b/src/Controller/Client.java
index b4a77fe..7c8ad12 100644
--- a/src/Controller/Client.java
+++ b/src/Controller/Client.java
@@ -9,30 +9,21 @@ public class Client implements Runnable{
 
 
     private Socket curSocket;
-    private ObjectOutputStream out;
-    private ObjectInputStream in;
+    private ObjectOutputStream objectOutputStream;
+    private ObjectInputStream objectInputStream;
     private SerializeObject obj = null;
 
-    private SerializeObject result = null;
-    private boolean flag = true;
+    private Object input = null;
+    private GameController gameController;
 
-    // 서버에 객체 전달
-    public synchronized void returnObj (SerializeObject obj){
-        this.obj = obj;
-        flag = false;
-        while(!flag){
-        }
-    }
 
-    public SerializeObject getAnswer(){
-        return result;
+    public Client(GameController gameController){
+        this.gameController = gameController;
     }
 
-
-
-    public synchronized void setFlag() {
-        flag = true;
-        notify(); // 메인 스레드에 flag 변경 알림
+    // 서버에 객체 전달
+    public synchronized void returnObj (SerializeObject obj){
+        this.obj = obj;
     }
 
     public void connect(String address, int port, String name) throws UnknownHostException, NotEmptySpaceException, OnProgressException{
@@ -40,10 +31,10 @@ public void connect(String address, int port, String name) throws UnknownHostExc
             System.out.println("연결을 시도합니다.");
             curSocket = new Socket(address, port);
             System.out.println(curSocket);
-            this.out = new ObjectOutputStream(curSocket.getOutputStream());
-            this.in = new ObjectInputStream(curSocket.getInputStream());
+            this.objectOutputStream = new ObjectOutputStream(curSocket.getOutputStream());
+            this.objectInputStream = new ObjectInputStream(curSocket.getInputStream());
 
-            SerializeObject answer = (SerializeObject)in.readObject();
+            SerializeObject answer = (SerializeObject) objectInputStream.readObject();
             String answerStr = (String)answer.getEventObject();
             returnObj(new SerializeObject("received", "String"));
             if(answerStr.equals("방이 가득찼습니다.")) {
@@ -55,7 +46,7 @@ else if(answerStr.equals("현재 게임이 진행중입니다.")){
 
             System.out.println("서버에 연결되었습니다.");
 
-            out.writeObject(new SerializeObject(name, "String"));
+            objectOutputStream.writeObject(new SerializeObject(name, "String"));
         }catch (IOException e){
             e.printStackTrace();
         } catch (ClassNotFoundException e) {
@@ -66,11 +57,15 @@ else if(answerStr.equals("현재 게임이 진행중입니다.")){
     @Override
     public void run() {
         try {
-            while (obj != null) {
-                out.writeObject(obj);
-                result = (SerializeObject) in.readObject();
-                obj = null;
-                setFlag();
+            while (obj != null || (input = objectInputStream.readObject()) != null) {
+                // 입력
+                if(obj != null) {
+                    objectOutputStream.writeObject(obj);
+                    obj = null;
+                }
+                else {
+                    gameController.excuteQuery((SerializeObject) input, -1);
+                }
             }
         } catch (IOException | ClassNotFoundException e) {
             e.printStackTrace();
diff --git a/src/Controller/ClientHandler.java b/src/Controller/ClientHandler.java
new file mode 100644
index 0000000..33d649c
--- /dev/null
+++ b/src/Controller/ClientHandler.java
@@ -0,0 +1,63 @@
+package Controller;
+
+import java.io.*;
+import java.net.Socket;
+
+public class ClientHandler implements Runnable {
+    private Socket clientSocket;
+    private ObjectOutputStream objectOutputStream;
+    private ObjectInputStream objectInputStream;
+    private Object input = null;
+
+    private Server server;
+    private int index;
+    private SerializeObject obj = null;
+
+
+    // 클라이언트에 객체 전달
+    public void returnObj (SerializeObject obj){
+        this.obj = obj;
+    }
+
+    public void update(SerializeObject object){
+        // 현재 오브젝트 파싱 및 처리
+        server.notifiObservers(this, object);
+    }
+
+
+    public ClientHandler(Socket socket, Server server, int index) {
+        this.clientSocket = socket;
+        this.server = server;
+        this.index = index;
+        try {
+            objectOutputStream = new ObjectOutputStream(clientSocket.getOutputStream());
+            objectInputStream = new ObjectInputStream(clientSocket.getInputStream());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void run() {
+        try {
+            while (obj != null || (input = objectInputStream.readObject()) != null) {
+                // 입력
+                if(obj != null) {
+                    objectOutputStream.writeObject(obj);
+                    obj = null;
+                }
+                else {
+                    update((SerializeObject) input);
+                }
+            }
+        } catch (IOException | ClassNotFoundException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                clientSocket.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}
diff --git a/src/Controller/GameController.java b/src/Controller/GameController.java
index 160e555..113e117 100644
--- a/src/Controller/GameController.java
+++ b/src/Controller/GameController.java
@@ -76,13 +76,15 @@ public void makeRoom() {
 
 
     public void connectRoom(String address) {
-        client = new Client();
+        client = new Client(this);
         isServer = false;
         String name = view.getNameTF().getText();
+        view.getLoginErrorLabel().setText("연결 중 입니다...");
         try {
+            // TODO
             client.connect(address, PORT, name);
+
             view.changePanel("RoomPanel");
-            curPlayer = new Player(name);
         } catch (UnknownHostException e) {
             view.getLoginErrorLabel().setText("IP주소로 접속할 수 없습니다. IP주소를 다시 확인해주세요.");
         } catch (NotEmptySpaceException e){
@@ -91,6 +93,64 @@ public void connectRoom(String address) {
             view.getLoginErrorLabel().setText("현재 게임이 진행 중인 방입니다.");
         }
     }
+
+
+    // 플레이어 ready 상태 변경 함수
+    public void changeReadyState(int index, Player.ReadyState readyState){
+        // ready
+        if(readyState == Player.ReadyState.READY && players[index].getReadyState() == Player.ReadyState.NOT_READY){
+            players[index].setReadyState(Player.ReadyState.READY);
+        }
+        // ready 해제
+        else if(readyState == Player.ReadyState.NOT_READY && players[index].getReadyState() == Player.ReadyState.READY){
+            players[index].setReadyState(Player.ReadyState.NOT_READY);
+        }
+        view.updateRoomReadyPanel(players[index].getReadyState(), index);
+    }
+
+    // 플레이어 정보 변경 함수
+    public void changePlayers(Player[] getPlayers){
+        // Model 플레이어 변경
+        players = getPlayers;
+
+        // 플레이어 정보 UI 적용
+        view.updatePlayers(players);
+    }
+
+
+    // 클라이언트로 넘어온 쿼리 실행 함수
+    public void excuteQuery(SerializeObject object, int index){
+        switch (object.getObjectType()){
+            case "String" :
+                String content = (String)object.getEventObject();
+
+                break;
+            case "Player[]":
+                Player[] getPlayers = (Player[]) object.getEventObject();
+                changePlayers(getPlayers);
+                break;
+
+            case "Name":
+                if(isServer) {
+                    String name = (String) object.getEventObject();
+                    players[index].setName(name);
+                    server.notifiObservers(players[index].getClientHandler(), new SerializeObject(players, "Player[]"));
+                }
+                break;
+
+            case "ReadyState" :
+                if(isServer) {
+                    Player.ReadyState readyState = (Player.ReadyState) object.getEventObject();
+                    changeReadyState(index, readyState);
+                    server.notifiObservers(players[index].getClientHandler(), new SerializeObject(players, "Player[]"));
+                    break;
+                }
+            default:
+                break;
+        }
+
+    }
+
  }
 
 
diff --git a/src/Controller/Server.java b/src/Controller/Server.java
index e644da4..acab1d3 100644
--- a/src/Controller/Server.java
+++ b/src/Controller/Server.java
@@ -10,17 +10,36 @@ public class Server {
 
     static int clientCnt = 0;
     static int port;
-    static ClientHandler[] handlers = new ClientHandler[GameController.MAX_PLAYER_COUNT];
-
+    static Player[] players;
     static private GameController gameController;
 
     public Server(int port, GameController gameController) {
         this.port = port;
         this.gameController = gameController;
+        players = gameController.getPlayers();
         openServer();
     }
 
-    static void openServer() {
+
+    public void notifiObservers(ClientHandler clientHandler, SerializeObject object){
+        for(int i = 0 ; i < GameController.MAX_PLAYER_COUNT ; i ++){
+            if(players[i] == null || players[i].getClientHandler() == clientHandler) continue;
+            ClientHandler curHandler = players[i].getClientHandler();
+            curHandler.returnObj(object);
+        }
+    }
+
+     private void addPlayer(Socket clientSocket){
+        clientCnt++;
+        int idx = clientCnt - 1;
+        ClientHandler curHandler = new ClientHandler(clientSocket, this, idx);
+        Thread clientThread = new Thread(curHandler);
+        clientThread.start();
+        curHandler.returnObj(new SerializeObject("connected", "String"));
+        players[idx] = new Player("", curHandler);
+    }
+
+    private void openServer() {
 
             Thread serverWaitThread = new Thread(new Runnable() {
                 @Override
@@ -40,14 +59,7 @@ public void run() {
 
                             if (clientCnt < 4 || GameController.gameState == GameController.GameState.FINISHED) {
                                 // 클라이언트와 통신하는 스레드 생성
-                                ClientHandler curHandler = new ClientHandler(clientSocket);
-                                clientCnt++;
-                                handlers[clientCnt - 1] = curHandler;
-                                Thread clientThread = new Thread(curHandler);
-                                clientThread.start();
-                                curHandler.returnObj(new SerializeObject("connected", "String"));
-                                String name = (String)curHandler.getAnswer().getEventObject(); // 플레이어 객체 받기
-                                gameController.getPlayers()[clientCnt - 1] = new Player(name);
+                                addPlayer(clientSocket);
                             } else {
                                 PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
                                 if(clientCnt >= 4) {
@@ -69,64 +81,3 @@ public void run() {
             serverWaitThread.start();
         }
     }
-
-class ClientHandler implements Runnable {
-    private Socket clientSocket;
-    private PrintWriter out;
-    private BufferedReader in;
-    private ObjectOutputStream objectOutputStream;
-    private ObjectInputStream objectInputStream;
-    private SerializeObject result = null;
-    private boolean flag = true;
-
-    private SerializeObject obj = null;
-
-
-    // 클라이언트에 객체 전달
-    public synchronized void returnObj (SerializeObject obj){
-        this.obj = obj;
-        flag = false;
-        while(!flag){
-        }
-    }
-
-    public SerializeObject getAnswer(){
-        return result;
-    }
-
-    public synchronized void setFlag() {
-        flag = true;
-        notify(); // 메인 스레드에 flag 변경 알림
-    }
-
-
-    public ClientHandler(Socket socket) {
-        this.clientSocket = socket;
-        try {
-            objectOutputStream = new ObjectOutputStream(clientSocket.getOutputStream());
-            objectInputStream = new ObjectInputStream(clientSocket.getInputStream());
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public void run() {
-        try {
-            while (obj != null) {
-                objectOutputStream.writeObject(obj);
-                result = (SerializeObject) objectInputStream.readObject();
-                obj = null;
-                setFlag();
-            }
-        } catch (IOException | ClassNotFoundException e) {
-            e.printStackTrace();
-        } finally {
-            try {
-                clientSocket.close();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}
diff --git a/src/Model/Player.java b/src/Model/Player.java
index a32a4cf..5209259 100644
--- a/src/Model/Player.java
+++ b/src/Model/Player.java
@@ -1,20 +1,27 @@
 package Model;
 
+import Controller.ClientHandler;
+
 import java.util.ArrayList;
 import java.util.List;
 
-// 루미큐브 플레이어 객체
+// 루미큐브 플레이어의 내용을 담근 객체
+
 public class Player {
+
+    public enum ReadyState{
+        READY, NOT_READY;
+    }
     private String name; // 유저의 이름
+    private ClientHandler clientHandler;
     private List<Tile> tiles; // 유저가 가지고 있는 타일들
 
-    private int playerIdx = -1; // players 인덱스 번호
-
-    private int handlerIdx = -1; // clientHandler 인덱스 번호
+    private ReadyState readyState = ReadyState.NOT_READY;
 
     // 유저 클래스의 생성자
-    public Player(String name) {
+    public Player(String name, ClientHandler clientHandler) {
         this.name = name;
+        this.clientHandler = clientHandler;
         this.tiles = new ArrayList<>(); // 타일 리스트 초기화
     }
 
@@ -23,6 +30,10 @@ public String getName() {
         return name;
     }
 
+    public void setName(String name){
+        this.name = name;
+    }
+
     // 유저가 가진 타일 리스트를 반환하는 메서드
     public List<Tile> getTiles() {
         return tiles;
@@ -38,21 +49,20 @@ public void removeTile(Tile tile) {
         tiles.remove(tile);
     }
 
-    public int getHandlerIdx() {
-        return handlerIdx;
+    public void setReadyState(ReadyState changeReadyState){
+        this.readyState = changeReadyState;
     }
 
-    public void setHandlerIdx(int handlerIdx) {
-        this.handlerIdx = handlerIdx;
+    public ReadyState getReadyState(){
+        return readyState;
     }
 
-    public int getPlayerIdx() {
-        return playerIdx;
+    public ClientHandler getClientHandler() {
+        return clientHandler;
     }
 
-    public void setPlayerIdx(int playerIdx) {
-        this.playerIdx = playerIdx;
+    @Override
+    public String toString() {
+        return "name : " + name + " ReadyState : " + this.readyState;
     }
-
-    // 추가 유저 행동 메서드
 }
diff --git a/src/View/GameView.java b/src/View/GameView.java
index c321c0a..2445557 100644
--- a/src/View/GameView.java
+++ b/src/View/GameView.java
@@ -1,6 +1,7 @@
 package View;
 
 import Controller.GameController;
+import Model.Player;
 
 import java.awt.FlowLayout;
 
@@ -35,9 +36,38 @@ public class GameView {
     private JPanel[] roomReadyPanel = new JPanel[MAX_PLAYER_COUNT];
     private JLabel[] roomNameLabel = new JLabel[MAX_PLAYER_COUNT];
 
+    private JPanel[] roomPlayerPanel = new JPanel[MAX_PLAYER_COUNT];
+
     private GameController gameController;
 
 
+    public void updateRoomReadyPanel(Player.ReadyState readyState, int index){
+        if(readyState == Player.ReadyState.READY){
+            roomReadyPanel[index].setBackground(Color.green);
+        }
+        else{
+            roomReadyPanel[index].setBackground(Color.red);
+        }
+    }
+
+    public void updateNameLabel(String name, int index){
+        roomNameLabel[index].setText(name);
+    }
+
+    public void updatePlayers(Player[] players){
+        for(int i = 0 ; i < MAX_PLAYER_COUNT ; i ++){
+            if(players[i] != null){
+                updateRoomReadyPanel(players[i].getReadyState(), i);
+                updateNameLabel(players[i].getName(), i);
+            }
+            else{
+                roomPlayerPanel[i].setVisible(false);
+            }
+        }
+
+    }
+
+
     public void setGameController(GameController gameController){
         this.gameController = gameController;
     }
@@ -512,6 +542,7 @@ else if(address.isEmpty() || address.isBlank() || !isValidIP(address)){
 
             for(int j = 0 ; j < 2 ; j ++) {
                 JPanel RoomPlayerPanel = new JPanel();
+                roomPlayerPanel[i * 2 + j] = RoomPlayerPanel;
 //                RoomPlayerPanel.setBackground(Color.cyan);
                 RoomPlayerPanel.setPreferredSize(new Dimension(550, 310));
                 roomRowPanel.add(RoomPlayerPanel);