diff --git a/scripts/start.sh b/scripts/start.sh
index 648d255..74e6c78 100644
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -1,12 +1,17 @@
 PROJECT_ROOT="/home/ec2-user/mapddang-back"
 JAR_FILE="$PROJECT_ROOT/dnd-travel.jar"
-
 APP_LOG="$PROJECT_ROOT/application.log"
 ERROR_LOG="$PROJECT_ROOT/error.log"
 DEPLOY_LOG="$PROJECT_ROOT/deploy.log"
-
 TIME_NOW=$(date +%c)
 
+# 이전 프로세스 확인
+CURRENT_PID=$(ps -ef | grep java | grep "$JAR_FILE" | grep -v grep | awk '{print $2}')
+if [ -n "$CURRENT_PID" ]; then
+    echo "$TIME_NOW > 이전 프로세스($CURRENT_PID) 종료 시도" >> $DEPLOY_LOG
+    kill -9 $CURRENT_PID
+fi
+
 # build 파일 복사
 echo "$TIME_NOW > $JAR_FILE 복사" >> $DEPLOY_LOG
 cp $PROJECT_ROOT/build/libs/dnd-travel-0.0.1-SNAPSHOT.jar $JAR_FILE
@@ -15,5 +20,7 @@ cp $PROJECT_ROOT/build/libs/dnd-travel-0.0.1-SNAPSHOT.jar $JAR_FILE
 echo "$TIME_NOW > $JAR_FILE 실행" >> $DEPLOY_LOG
 nohup java -jar $JAR_FILE > $APP_LOG 2> $ERROR_LOG &
 
-CURRENT_PID=$(pgrep -f $JAR_FILE)
-echo "$TIME_NOW > 서비스 PID: $CURRENT_PID " >> $DEPLOY_LOG
+# 실행 확인
+sleep 3
+NEW_PID=$(ps -ef | grep java | grep "$JAR_FILE" | grep -v grep | awk '{print $2}')
+echo "$TIME_NOW > 새로운 애플리케이션 시작 (PID: $NEW_PID)" >> $DEPLOY_LOG