diff --git a/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonApplyConsumer.java b/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonApplyConsumer.java
index 56dc2bf..e6e4be3 100644
--- a/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonApplyConsumer.java
+++ b/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonApplyConsumer.java
@@ -45,8 +45,10 @@ public void onMessage(MapRecord<String, String, String> message) {
 		String lessonIdStr = message.getValue().get("lessonId");
 		if (lessonIdStr != null) {
 			String key = "lesson:busy:" + lessonIdStr;
+			String lastActiveKey = "lesson:busy:last_active:" + lessonIdStr;
 			coreRedisTemplate.opsForValue().increment(key);
-			coreRedisTemplate.expire(key, java.time.Duration.ofSeconds(60));
+			coreRedisTemplate.expire(key, java.time.Duration.ofMinutes(10));
+			coreRedisTemplate.opsForValue().set(lastActiveKey, String.valueOf(System.currentTimeMillis()), java.time.Duration.ofMinutes(10));
 		}
 
 		buffer.add(message);
@@ -132,11 +134,15 @@ public Object execute(org.springframework.data.redis.core.RedisOperations operat
 			}
 		} finally {
 			// 작업 완료 후 각 레슨별로 이번 배치에서 처리한 개수만큼 Busy 카운터 감소
+			// 작업 완료 후 각 레슨별로 마지막 처리 시점 기록
 			Map<Long, Long> countsPerLesson = messages.stream()
 				.collect(Collectors.groupingBy(ApplyMessage::lessonId, Collectors.counting()));
 
 			countsPerLesson.forEach((lessonId, count) -> {
-				coreRedisTemplate.opsForValue().decrement("lesson:busy:" + lessonId, count);
+				String busyKey = "lesson:busy:" + lessonId;
+				String lastActiveKey = "lesson:busy:last_active:" + lessonId;
+				coreRedisTemplate.opsForValue().decrement(busyKey, count);
+				coreRedisTemplate.opsForValue().set(lastActiveKey, String.valueOf(System.currentTimeMillis()), java.time.Duration.ofMinutes(10));
 			});
 		}
 	}
diff --git a/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonStockReconciliationScheduler.java b/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonStockReconciliationScheduler.java
index 27a132c..29138c5 100644
--- a/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonStockReconciliationScheduler.java
+++ b/src/main/java/com/threestar/trainus/domain/lesson/issue/LessonStockReconciliationScheduler.java
@@ -63,13 +63,40 @@ public void reconcileStock() {
 
 				// 해당 레슨이 현재 배치 처리 중인지 확인
 				String busyKey = "lesson:busy:" + lessonId;
+				String lastActiveKey = "lesson:busy:last_active:" + lessonId;
 				String busyCountStr = coreRedisTemplate.opsForValue().get(busyKey);
-				int busyCount = (busyCountStr == null) ? 0 : Integer.parseInt(busyCountStr);
 
-				if (busyCount > 0) {
-					log.info("Lesson [{}] is still being processed by batch consumers (Busy count: {}). Skipping reconciliation for now.",
-						lessonId, busyCount);
-					continue;
+				// 보정 로직 미실행 조건 체크
+				if (busyCountStr != null) {
+					// 마지막 활동 시간 로드
+					String lastActiveStr = coreRedisTemplate.opsForValue().get(lastActiveKey);
+					long now = System.currentTimeMillis();
+					int busyCount = Integer.parseInt(busyCountStr);
+
+					// 일정 시간 무응답시 교착상태 방지
+					boolean isStale = (lastActiveStr != null && (now - Long.parseLong(lastActiveStr) > 600000)); // 10분 이상 무응답
+					boolean isRecent = (lastActiveStr != null && (now - Long.parseLong(lastActiveStr) < 5000));   // 5초 이내 활동
+					boolean isNegative = busyCount < 0;
+
+					// busy 카운터 존재 & 응답 10분 미만
+					if (busyCount > 0 && !isStale) {
+						log.info("Lesson [{}] is still being processed (Busy count: {}). Skipping reconciliation.", 
+							lessonId, busyCountStr);
+						continue;
+					}
+
+					// busy 카운터 = 0 & 5초 내 활동이 있었음 (DB트랜잭션 잠시 대기)
+					if (busyCount == 0 && isRecent) {
+						log.info("Lesson [{}] recently active. Waiting for safety margin.", lessonId);
+						continue;
+					}
+
+					// 응답 10분 초과 OR 음수 카운터 발생 (교착상태 방지 및 회복)
+					if (isStale || isNegative) {
+						log.warn("Detected stale or invalid busy state for lesson [{}] (Count: {}, Stale: {}). Forcing reset.", 
+							lessonId, busyCountStr, isStale);
+						coreRedisTemplate.opsForValue().set(busyKey, "0", java.time.Duration.ofMinutes(10));
+					}
 				}
 
 				// 실제 참여자 수 계산 (DB)