diff --git a/apps/client/src/entities/Player.ts b/apps/client/src/entities/Player.ts
index b0dab8b..4546dde 100644
--- a/apps/client/src/entities/Player.ts
+++ b/apps/client/src/entities/Player.ts
@@ -1,4 +1,5 @@
 import { Graphics } from 'pixi.js';
+import { GAME_CONFIG } from "@repo/shared/src/config/gameConfig";
 
 export class Player extends Graphics {
   constructor(color: number = 0xFF0000) {
@@ -9,8 +10,8 @@
 
   // 移動メソッド
   move(vx: number, vy: number, deltaTime: number) {
-    // 速度 200 で移動
-    const speed = 200 * deltaTime;
+    // 速度を定数から取得
+    const speed = GAME_CONFIG.PLAYER_SPEED * deltaTime;
     this.x += vx * speed;
     this.y += vy * speed;
 
diff --git a/apps/client/src/main.ts b/apps/client/src/main.ts
index de0cf01..bb8cce3 100644
--- a/apps/client/src/main.ts
+++ b/apps/client/src/main.ts
@@ -1,6 +1,7 @@
 import { Application } from 'pixi.js';
 import { Joystick } from './input/Joystick';
 import { Player } from './entities/Player';
+import { GAME_CONFIG } from '@repo/shared/src/config/gameConfig';
 
 // アプリケーション初期化
 const app = new Application();
@@ -27,7 +28,7 @@
   // 4. ゲームループ (毎フレーム実行)
   app.ticker.add((ticker) => {
     // 秒単位の経過時間 (Delta Time)
-    const dt = ticker.deltaTime / 60;
+    const dt = ticker.deltaTime / GAME_CONFIG.TARGET_FPS;
 
     // ジョイスティックの入力があれば移動
     if (joystick.input.x !== 0 || joystick.input.y !== 0) {
diff --git a/packages/shared/src/config/gameConfig.ts b/packages/shared/src/config/gameConfig.ts
index 987b7be..4139e4c 100644
--- a/packages/shared/src/config/gameConfig.ts
+++ b/packages/shared/src/config/gameConfig.ts
@@ -10,4 +10,7 @@
   // プレイヤー設定
   PLAYER_RADIUS: 20,      // キャラの大きさ
   PLAYER_SPEED: 300,      // 移動速度 (ピクセル/秒)
+
+  // システム設定
+  TARGET_FPS: 60, // 基準となるFPS
 } as const;
\ No newline at end of file