diff --git a/apps/client/src/scenes/GameScene.tsx b/apps/client/src/scenes/GameScene.tsx
index d425e65..9c784d9 100644
--- a/apps/client/src/scenes/GameScene.tsx
+++ b/apps/client/src/scenes/GameScene.tsx
@@ -2,9 +2,10 @@
 import { Application, Container } from "pixi.js";
 
 // ネットワーク・入力
-import { socketClient, type PlayerData } from "../network/SocketClient";
+import { socketClient} from "../network/SocketClient";
 import { VirtualJoystick, MAX_DIST } from "../input/VirtualJoystick";
 import { GAME_CONFIG } from "@repo/shared/src/config/gameConfig";
+import { type PlayerData } from "@repo/shared/src/types/player";
 
 // ゲームオブジェクト
 import { GameMap } from "../entities/GameMap";
@@ -47,7 +48,7 @@
         const playersArray = (Array.isArray(serverPlayers) ? serverPlayers : Object.values(serverPlayers)) as PlayerData[];
         playersArray.forEach((p) => {
           const isMe = p.id === myId;
-          const playerSprite = new Player(p.color, isMe);
+          const playerSprite = new Player(GAME_CONFIG.TEAM_COLORS[p.teamId], isMe);
           playerSprite.position.set(p.x, p.y);
           worldContainer.addChild(playerSprite);
           playersRef.current[p.id] = playerSprite;
@@ -58,7 +59,7 @@
       // 新規参加：新しいプレイヤーを画面に追加
       socketClient.onNewPlayer((p: PlayerData) => {
         console.log("🔥 新規プレイヤー参加:", p);
-        const playerSprite = new Player(p.color, false);
+        const playerSprite = new Player(GAME_CONFIG.TEAM_COLORS[p.teamId], false);
         playerSprite.position.set(p.x, p.y);
         worldContainer.addChild(playerSprite);
         playersRef.current[p.id] = playerSprite;
diff --git a/apps/server/src/entities/Player.ts b/apps/server/src/entities/Player.ts
index efd60a8..62dacae 100644
--- a/apps/server/src/entities/Player.ts
+++ b/apps/server/src/entities/Player.ts
@@ -1,17 +1,16 @@
-// src/entities/Player.ts
-export class Player {
+import type { PlayerData } from "@repo/shared/src/types/player";
+
+export class Player implements PlayerData {
   public id: string;
   public x: number = 0;
   public y: number = 0;
-  public color: string;
+  public teamId: number;
 
   constructor(id: string) {
     this.id = id;
-    /*
-    this.x = Math.floor(Math.random() * 1000) + 500; 
-    this.y = Math.floor(Math.random() * 1000) + 500;
-    */
-    // ランダムな色をつけるとおしゃれです
-    this.color = '#' + Math.floor(Math.random()*16777215).toString(16);
+    
+    // 0〜3のランダムなチームIDを割り当てる
+    // (4チーム制を想定し、Math.randomで一旦仮実装)
+    this.teamId = Math.floor(Math.random() * 4);
   }
 }
\ No newline at end of file
diff --git a/packages/shared/src/config/gameConfig.ts b/packages/shared/src/config/gameConfig.ts
index bd60d31..f326d05 100644
--- a/packages/shared/src/config/gameConfig.ts
+++ b/packages/shared/src/config/gameConfig.ts
@@ -18,4 +18,8 @@
   PLAYER_POSITION_UPDATE_MS: 50,  // 座標送信の間隔 (20Hz = 50ms)
   PLAYER_LERP_SMOOTHNESS: 0.3,    // 他プレイヤーの動きの滑らかさ (0.1〜0.5程度で調整)
   PLAYER_LERP_SNAP_THRESHOLD: 0.5,  // これ以下の距離になったら座標を強制的に合わせる
+
+  // チーム設定
+  // チームカラー 0:赤, 1:青, 2:緑, 3:黄
+  TEAM_COLORS: ['#FF4B4B', '#4B4BFF', '#4BFF4B', '#FFD700'],  
 } as const;
\ No newline at end of file
diff --git a/packages/shared/src/types/player.ts b/packages/shared/src/types/player.ts
index 90b43b2..ecfcb70 100644
--- a/packages/shared/src/types/player.ts
+++ b/packages/shared/src/types/player.ts
@@ -3,5 +3,5 @@
   id: string;
   x: number;
   y: number;
-  color: string;
+  teamId: number;   // 0〜3の数値を想定
 }
\ No newline at end of file