diff --git a/apps/client/src/network/handlers/GameHandler.ts b/apps/client/src/network/handlers/GameHandler.ts
index ea9f08e..c5f42c6 100644
--- a/apps/client/src/network/handlers/GameHandler.ts
+++ b/apps/client/src/network/handlers/GameHandler.ts
@@ -17,6 +17,7 @@
   MovePayload,
   NewPlayerPayload,
   PlaceBombPayload,
+  PlayerDeadPayload,
   RemovePlayerPayload,
   UpdateMapCellsPayload,
   UpdatePlayersPayload,
@@ -46,6 +47,8 @@
   offBombPlaced: (callback: (payload: BombPlacedPayload) => void) => void;
   onBombPlacedAck: (callback: (payload: BombPlacedAckPayload) => void) => void;
   offBombPlacedAck: (callback: (payload: BombPlacedAckPayload) => void) => void;
+  onPlayerDead: (callback: (payload: PlayerDeadPayload) => void) => void;
+  offPlayerDead: (callback: (payload: PlayerDeadPayload) => void) => void;
   sendMove: (x: number, y: number) => void;
   sendPlaceBomb: (payload: PlaceBombPayload) => void;
   sendBombHitReport: (payload: BombHitReportPayload) => void;
@@ -108,6 +111,9 @@
   const bombPlacedAckSubscription = createSubscriptionPair(
     protocol.SocketEvents.BOMB_PLACED_ACK
   );
+  const playerDeadSubscription = createSubscriptionPair(
+    protocol.SocketEvents.PLAYER_DEAD
+  );
   const sendMovePayload = createPayloadSender(protocol.SocketEvents.MOVE);
   const sendPlaceBombPayload = createPayloadSender(protocol.SocketEvents.PLACE_BOMB);
   const sendBombHitReportPayload = createPayloadSender(
@@ -179,6 +185,12 @@
     offBombPlacedAck: (callback) => {
       bombPlacedAckSubscription.off(callback);
     },
+    onPlayerDead: (callback) => {
+      playerDeadSubscription.on(callback);
+    },
+    offPlayerDead: (callback) => {
+      playerDeadSubscription.off(callback);
+    },
     sendMove: (x, y) => {
       const payload: MovePayload = { x, y };
       sendMovePayload(payload);
diff --git a/apps/client/src/scenes/game/GameManager.ts b/apps/client/src/scenes/game/GameManager.ts
index 498b49c..4e72924 100644
--- a/apps/client/src/scenes/game/GameManager.ts
+++ b/apps/client/src/scenes/game/GameManager.ts
@@ -4,7 +4,11 @@
  * マップ，ネットワーク同期，ゲームループを統合する
  */
 import { Application, Container, Ticker } from "pixi.js";
-import type { BombPlacedAckPayload, BombPlacedPayload } from "@repo/shared";
+import type {
+  BombPlacedAckPayload,
+  BombPlacedPayload,
+  PlayerDeadPayload,
+} from "@repo/shared";
 import { socketManager } from "@client/network/SocketManager";
 import { AppearanceResolver } from "./application/AppearanceResolver";
 import { GameMapController } from "./entities/map/GameMapController";
@@ -162,6 +166,9 @@
       onBombPlacedAckFromNetwork: (payload) => {
         this.applyPlacedBombAck(payload);
       },
+      onPlayerDeadFromNetwork: (payload) => {
+        this.handlePlayerDeadFromNetwork(payload);
+      },
     });
     this.networkSync.bind();
   }
@@ -233,6 +240,14 @@
     return true;
   }
 
+  private handlePlayerDeadFromNetwork(payload: PlayerDeadPayload): void {
+    if (payload.playerId !== this.myId) {
+      return;
+    }
+
+    this.lockInput();
+  }
+
   /**
    * クリーンアップ処理（コンポーネントアンマウント時）
    */
diff --git a/apps/client/src/scenes/game/application/GameNetworkSync.ts b/apps/client/src/scenes/game/application/GameNetworkSync.ts
index 5d1f28a..1a910e1 100644
--- a/apps/client/src/scenes/game/application/GameNetworkSync.ts
+++ b/apps/client/src/scenes/game/application/GameNetworkSync.ts
@@ -10,12 +10,13 @@
   CurrentPlayersPayload,
   GameStartPayload,
   NewPlayerPayload,
+  PlayerDeadPayload,
   RemovePlayerPayload,
   UpdateMapCellsPayload,
   UpdatePlayersPayload,
 } from "@repo/shared";
 import { socketManager } from "@client/network/SocketManager";
-import { AppearanceResolver } from "@client/scenes/game/application/AppearanceResolver";
+import { AppearanceResolver } from "./AppearanceResolver";
 import { LocalPlayerController, RemotePlayerController } from "@client/scenes/game/entities/player/PlayerController";
 import { GameMapController } from "@client/scenes/game/entities/map/GameMapController";
 import type { GamePlayers } from "./game.types";
@@ -32,6 +33,7 @@
   onGameEnd: () => void;
   onBombPlacedFromOthers: (payload: BombPlacedPayload) => void;
   onBombPlacedAckFromNetwork: (payload: BombPlacedAckPayload) => void;
+  onPlayerDeadFromNetwork: (payload: PlayerDeadPayload) => void;
 };
 
 /** ゲーム中のネットワークイベント購読と同期処理を管理する */
@@ -45,6 +47,7 @@
   private onGameEnd: () => void;
   private onBombPlacedFromOthers: (payload: BombPlacedPayload) => void;
   private onBombPlacedAckFromNetwork: (payload: BombPlacedAckPayload) => void;
+  private onPlayerDeadFromNetwork: (payload: PlayerDeadPayload) => void;
   private isBound = false;
 
   private debugLog = (message: string) => {
@@ -113,6 +116,10 @@
     this.onBombPlacedAckFromNetwork(payload);
   };
 
+  private handlePlayerDead = (payload: PlayerDeadPayload) => {
+    this.onPlayerDeadFromNetwork(payload);
+  };
+
   constructor({
     worldContainer,
     players,
@@ -123,6 +130,7 @@
     onGameEnd,
     onBombPlacedFromOthers,
     onBombPlacedAckFromNetwork,
+    onPlayerDeadFromNetwork,
   }: GameNetworkSyncOptions) {
     this.worldContainer = worldContainer;
     this.players = players;
@@ -133,6 +141,7 @@
     this.onGameEnd = onGameEnd;
     this.onBombPlacedFromOthers = onBombPlacedFromOthers;
     this.onBombPlacedAckFromNetwork = onBombPlacedAckFromNetwork;
+    this.onPlayerDeadFromNetwork = onPlayerDeadFromNetwork;
   }
 
   public bind() {
@@ -147,6 +156,7 @@
     socketManager.game.onGameEnd(this.handleGameEnd);
     socketManager.game.onBombPlaced(this.handleBombPlaced);
     socketManager.game.onBombPlacedAck(this.handleBombPlacedAck);
+    socketManager.game.onPlayerDead(this.handlePlayerDead);
 
     this.isBound = true;
   }
@@ -163,6 +173,7 @@
     socketManager.game.offGameEnd(this.handleGameEnd);
     socketManager.game.offBombPlaced(this.handleBombPlaced);
     socketManager.game.offBombPlacedAck(this.handleBombPlacedAck);
+    socketManager.game.offPlayerDead(this.handlePlayerDead);
 
     this.isBound = false;
   }