diff --git a/Assets/Script/Common/Constants.cs b/Assets/Script/Common/Constants.cs
index 328ac54..a15f242 100644
--- a/Assets/Script/Common/Constants.cs
+++ b/Assets/Script/Common/Constants.cs
@@ -18,6 +18,7 @@
         ExitRoom,       // 자신이 방을 빠져 나왔을 때
         EndGame,        // 상대방이 접속을 끊거나 방을 나갔을 때
         DoSurrender,      // 상대방이 항복했을 때
-        SurrenderConfirmed // 항복 요청이 성공적으로 전송되었을 때
+        SurrenderConfirmed, // 항복 요청이 성공적으로 전송되었을 때
+        ReceiveTimeout  // 상대방이 타임 아웃일 때
     };
 }
\ No newline at end of file
diff --git a/Assets/Script/Game/GameLogic.cs b/Assets/Script/Game/GameLogic.cs
index fb5afb7..61f7e79 100644
--- a/Assets/Script/Game/GameLogic.cs
+++ b/Assets/Script/Game/GameLogic.cs
@@ -177,7 +177,7 @@ public class MultiPlayerState: BasePlayerState
         gameLogic.UpdateForbiddenMoves();
         #endregion
         
-        // gameLogic.currentTurn = _playerType;
+        gameLogic.currentTurn = _playerType;
         // gameLogic.stoneController.OnStoneClickedDelegate = (row, col) =>
         // {
         //     HandleMove(gameLogic, row, col);
@@ -278,17 +278,24 @@ public class GameLogic : MonoBehaviour
             //timer 시간초과시 진행 함수
             this.fioTimer.OnTimeout = () =>
             {
-                if (currentTurn == Enums.PlayerType.PlayerA)
+                // 현재 턴의 플레이어가 로컬(유저)인지 확인
+                bool isCurrentPlayerLocal = (currentTurn == Enums.PlayerType.PlayerA && firstPlayerState is PlayerState) ||
+                                            (currentTurn == Enums.PlayerType.PlayerB && secondPlayerState is PlayerState);
+
+                if (isCurrentPlayerLocal) // 내가 타임 오버일 때
                 {
-                    GameManager.Instance.panelManager.OpenConfirmPanel($"Game Over: {Enums.PlayerType.PlayerB} Win",
-                        () =>{});
+                    if (this.gameType == Enums.GameType.MultiPlay) // 멀티플레이인 경우
+                    {
+                        _multiplayManager?.SendTimeout();
+                    }
+                    GameManager.Instance.panelManager.OpenEffectPanel(Enums.GameResult.Lose);
                     EndGame(Enums.GameResult.Lose);
                 }
-                else if (currentTurn == Enums.PlayerType.PlayerB)
+                else // 로컬에서 자신의 타이머 기준으로 상대방이 타임 오버일 때
                 {
-                    GameManager.Instance.panelManager.OpenConfirmPanel($"Game Over: {Enums.PlayerType.PlayerA} Win",
-                        () =>{});
-                    EndGame(Enums.GameResult.Win);
+                    // TODO: 컨펌 패널 OK 버튼 삭제?
+                    GameManager.Instance.panelManager.OpenConfirmPanel("상대방의 응답을 기다리는 중입니다",
+                        () => { } );
                 }
             };
         }
@@ -462,6 +469,14 @@ public class GameLogic : MonoBehaviour
                             EndGame(Enums.GameResult.Lose);
                         });
                         break;
+                    case Constants.MultiplayManagerState.ReceiveTimeout:
+                        Debug.Log("상대방이 타임 아웃 됨");
+                        UnityMainThreadDispatcher.Instance().Enqueue(() =>
+                        {
+                            GameManager.Instance.panelManager.OpenEffectPanel(Enums.GameResult.Win);
+                            EndGame(Enums.GameResult.Win);
+                        });
+                        break;
                 }
                 ReplayManager.Instance.InitReplayData(UserManager.Instance.Nickname,"nicknameB");
                 
@@ -492,6 +507,7 @@ public class GameLogic : MonoBehaviour
         // 기존 멀티플레이 상태 초기화
         _multiplayManager = null;
         _roomId = null;
+        this.gameType = Enums.GameType.SinglePlay;
 
         // 싱글 플레이 상태로 변경
         firstPlayerState = new PlayerState(true);
diff --git a/Assets/Script/Game/MultiplayManager.cs b/Assets/Script/Game/MultiplayManager.cs
index c5a8eab..445dfa5 100644
--- a/Assets/Script/Game/MultiplayManager.cs
+++ b/Assets/Script/Game/MultiplayManager.cs
@@ -90,6 +90,7 @@ public class MultiplayManager : IDisposable
             _socket.On("doOpponent", DoOpponent);
             _socket.On("doSurrender", DoSurrender);
             _socket.On("surrenderConfirmed", SurrenderConfirmed);
+            _socket.On("receiveTimeout", ReceiveTimeout);
 
             _socket.Connect();
         }
@@ -218,6 +219,30 @@ public class MultiplayManager : IDisposable
         _onMultiplayStateChanged?.Invoke(Constants.MultiplayManagerState.SurrenderConfirmed, data.message);
     }
 
+    /// <summary>
+    /// 타임 아웃 요청
+    /// </summary>
+    public void SendTimeout()
+    {
+        if (string.IsNullOrEmpty(_roomId))
+        {
+            Debug.LogError("LeaveRoom 호출 실패: _roomId가 설정되지 않음");
+            return;
+        }
+        _socket.Emit("sendTimeout",new { roomId = _roomId });
+    }
+    
+    /// <summary>
+    /// 타임 아웃 수신
+    /// </summary>
+    /// <param name="response"></param>
+    private void ReceiveTimeout(SocketIOResponse response)
+    {
+        var data = response.GetValue<MessageData>();
+    
+        _onMultiplayStateChanged?.Invoke(Constants.MultiplayManagerState.ReceiveTimeout, data.message);
+    }
+
     public void Dispose()
     {
         if (_socket != null)