diff --git a/src/components/game/GameCanvas.tsx b/src/components/game/GameCanvas.tsx
index 57b1489..5f50f7d 100644
--- a/src/components/game/GameCanvas.tsx
+++ b/src/components/game/GameCanvas.tsx
@@ -740,15 +740,29 @@ function GameCanvas({
         });
       }, 1000);
     } else if (questionTimeLeft === 0 && showQuestionModal) {
-      // 시간 초과 시 자동 제출
-      submitAnswer();
-      setShowQuestionModal(false);
+      // 시간 초과 시 자동으로 오답 처리
+      if (currentPixel) {
+        // 시간 초과시 자동으로 false 결과 전송
+        startCooldown(1);
+        setLives((prev) => Math.max(0, prev - 1));
+        
+        sendGameResult({
+          x: currentPixel.x,
+          y: currentPixel.y,
+          color: currentPixel.color,
+          result: false,
+        });
+        
+        setShowQuestionModal(false);
+        setShowResult(false);
+        setCurrentPixel(null);
+      }
     }
 
     return () => {
       clearInterval(timerId);
     };
-  }, [showQuestionModal, questionTimeLeft, submitAnswer]);
+  }, [showQuestionModal, questionTimeLeft, currentPixel, startCooldown, setLives, sendGameResult]);
 
   // 게임 데이터 및 캔버스 초기화
   const { getSynchronizedServerTime } = useTimeSyncStore();
diff --git a/src/components/modal/QuestionModal.tsx b/src/components/modal/QuestionModal.tsx
index 4f76485..dc36639 100644
--- a/src/components/modal/QuestionModal.tsx
+++ b/src/components/modal/QuestionModal.tsx
@@ -32,8 +32,18 @@ const QuestionModal: React.FC<QuestionModalProps> = ({
 }) => {
   if (!isOpen || !currentQuestion) return null;
 
+  const handleKeyDown = (event: React.KeyboardEvent<HTMLDivElement>) => {
+    if (event.key === 'Enter') {
+      event.preventDefault(); // 엔터 키 기본 동작 방지
+      event.stopPropagation(); // 이벤트 전파 중단
+    }
+  };
+
   return (
-    <div className='fixed inset-0 z-50 flex items-center justify-center bg-black/70'>
+    <div
+      className='fixed inset-0 z-50 flex items-center justify-center bg-black/70'
+      onKeyDown={handleKeyDown} // 엔터 키 이벤트 핸들러 추가
+    >
       <div className='w-full max-w-md rounded-xl bg-gray-900 p-6 shadow-2xl'>
         <div className='mb-4 flex items-center justify-between'>
           <h3 className='text-xl font-bold text-white'>문제</h3>
@@ -129,4 +139,4 @@ const QuestionModal: React.FC<QuestionModalProps> = ({
   );
 };
 
-export default QuestionModal;
\ No newline at end of file
+export default QuestionModal;