diff --git a/lib/src/features/game/game_play_screen.dart b/lib/src/features/game/game_play_screen.dart
index cebc40b..4429437 100644
--- a/lib/src/features/game/game_play_screen.dart
+++ b/lib/src/features/game/game_play_screen.dart
@@ -255,6 +255,7 @@ class _GamePlayScreenState extends State<GamePlayScreen>
   /// TaskType 기반 BGM 전환 (애니메이션과 동기화)
   ///
   /// 애니메이션은 TaskType으로 결정되므로, BGM도 동일한 기준 사용
+  /// 전환 감지 외에도 현재 BGM이 TaskType과 일치하는지 검증
   void _updateBgmForTaskType(GameState state) {
     final audio = widget.audioService;
     if (audio == null) return;
@@ -262,19 +263,20 @@ class _GamePlayScreenState extends State<GamePlayScreen>
     final taskType = state.progress.currentTask.type;
     final isInBattleTask = taskType == TaskType.kill;
 
-    if (isInBattleTask && !_wasInBattleTask) {
-      // 전투 태스크 시작: 보스 여부에 따라 BGM 선택
+    // 전투 태스크 상태 결정
+    if (isInBattleTask) {
+      // 전투 태스크: 보스 여부에 따라 BGM 선택
       final monsterLevel = state.progress.currentTask.monsterLevel ?? 0;
       final playerLevel = state.traits.level;
       final isBoss = monsterLevel >= playerLevel + 5;
+      final expectedBgm = isBoss ? 'boss' : 'battle';
 
-      if (isBoss) {
-        audio.playBgm('boss');
-      } else {
-        audio.playBgm('battle');
+      // 전환 시점이거나 현재 BGM이 일치하지 않으면 재생
+      if (!_wasInBattleTask || audio.currentBgm != expectedBgm) {
+        audio.playBgm(expectedBgm);
       }
-    } else if (!isInBattleTask && _wasInBattleTask) {
-      // 전투 태스크 종료: 마을 BGM으로 복귀
+    } else if (_wasInBattleTask || audio.currentBgm == 'battle' || audio.currentBgm == 'boss') {
+      // 전투 태스크 종료 또는 BGM 불일치: 마을 BGM으로 복귀
       audio.playBgm('town');
     }
 
@@ -675,6 +677,7 @@ class _GamePlayScreenState extends State<GamePlayScreen>
             MaterialPageRoute<void>(
               builder: (_) => GamePlayScreen(
                 controller: widget.controller,
+                audioService: widget.audioService,
                 currentThemeMode: widget.currentThemeMode,
                 onThemeModeChange: widget.onThemeModeChange,
               ),
@@ -784,6 +787,7 @@ class _GamePlayScreenState extends State<GamePlayScreen>
                       MaterialPageRoute<void>(
                         builder: (_) => GamePlayScreen(
                           controller: widget.controller,
+                          audioService: widget.audioService,
                           currentThemeMode: widget.currentThemeMode,
                           onThemeModeChange: widget.onThemeModeChange,
                         ),