diff --git a/gg-data/src/main/java/gg/data/party/UserReport.java b/gg-data/src/main/java/gg/data/party/UserReport.java
index 5aa76af6d..e33de0e54 100644
--- a/gg-data/src/main/java/gg/data/party/UserReport.java
+++ b/gg-data/src/main/java/gg/data/party/UserReport.java
@@ -37,4 +37,11 @@ public class UserReport extends BaseTimeEntity {
 
 	@Column(length = 100)
 	private String message;
+
+	public UserReport(User reporter, User reportee, Room room, String message) {
+		this.reporter = reporter;
+		this.reportee = reportee;
+		this.room = room;
+		this.message = message;
+	}
 }
diff --git a/gg-pingpong-api/src/main/java/gg/party/api/user/report/controller/ReportController.java b/gg-pingpong-api/src/main/java/gg/party/api/user/report/controller/ReportController.java
index 217e23acc..ecf25c2fc 100644
--- a/gg-pingpong-api/src/main/java/gg/party/api/user/report/controller/ReportController.java
+++ b/gg-pingpong-api/src/main/java/gg/party/api/user/report/controller/ReportController.java
@@ -27,27 +27,40 @@ public class ReportController {
 	 * 방을 신고한다.
 	 * @param reportReqDto 신고 내용
 	 * @param roomId 방 번호
-	 * @return roomId
 	 */
 	@PostMapping("/rooms/{room_id}")
-	public ResponseEntity<Long> reportRoomAdd(@PathVariable("room_id") Long roomId,
+	public ResponseEntity<Void> reportRoomAdd(@PathVariable("room_id") Long roomId,
 		@RequestBody @Valid ReportReqDto reportReqDto,
 		@Parameter(hidden = true) @Login UserDto user) {
-		return ResponseEntity.status(HttpStatus.CREATED)
-			.body(reportService.addReportRoom(roomId, reportReqDto, user));
+		reportService.addReportRoom(roomId, reportReqDto, user);
+		return ResponseEntity.status(HttpStatus.CREATED).build();
 	}
 
 	/**
 	 * 댓글을 신고한다.
 	 * @param reportReqDto 신고 내용
 	 * @param commentId 댓글 번호
-	 * @return commentId
 	 */
 	@PostMapping("/comments/{comment_id}")
-	public ResponseEntity<Long> reportCommentAdd(@PathVariable("comment_id") Long commentId,
+	public ResponseEntity<Void> reportCommentAdd(@PathVariable("comment_id") Long commentId,
 		@RequestBody @Valid ReportReqDto reportReqDto,
 		@Parameter(hidden = true) @Login UserDto user) {
-		return ResponseEntity.status(HttpStatus.CREATED)
-			.body(reportService.addReportComment(commentId, reportReqDto, user));
+		reportService.addReportComment(commentId, reportReqDto, user);
+		return ResponseEntity.status(HttpStatus.CREATED).build();
+	}
+
+	/**
+	 * 유저 노쇼 신고한다.
+	 * @param reportReqDto 신고 내용
+	 * @param roomId 방 번호
+	 * @param userIntraId 유저 인트라 아이디
+	 */
+	@PostMapping("/rooms/{room_id}/users/{user_intra_id}")
+	public ResponseEntity<Void> reportUserAdd(@PathVariable("room_id") Long roomId,
+		@PathVariable("user_intra_id") String userIntraId,
+		@RequestBody @Valid ReportReqDto reportReqDto,
+		@Parameter(hidden = true) @Login UserDto user) {
+		reportService.addReportUser(roomId, reportReqDto, userIntraId, user);
+		return ResponseEntity.status(HttpStatus.CREATED).build();
 	}
 }
diff --git a/gg-pingpong-api/src/main/java/gg/party/api/user/report/service/ReportService.java b/gg-pingpong-api/src/main/java/gg/party/api/user/report/service/ReportService.java
index 45ca89ca2..66bc2b30b 100644
--- a/gg-pingpong-api/src/main/java/gg/party/api/user/report/service/ReportService.java
+++ b/gg-pingpong-api/src/main/java/gg/party/api/user/report/service/ReportService.java
@@ -15,6 +15,7 @@
 import gg.data.party.PartyPenalty;
 import gg.data.party.Room;
 import gg.data.party.RoomReport;
+import gg.data.party.UserReport;
 import gg.data.party.UserRoom;
 import gg.data.party.type.RoomType;
 import gg.data.user.User;
@@ -24,17 +25,23 @@
 import gg.repo.party.PartyPenaltyRepository;
 import gg.repo.party.RoomReportRepository;
 import gg.repo.party.RoomRepository;
+import gg.repo.party.UserReportRepository;
 import gg.repo.party.UserRoomRepository;
 import gg.repo.user.UserRepository;
 import gg.utils.exception.party.AlredayReportedException;
 import gg.utils.exception.party.CommentNotFoundException;
 import gg.utils.exception.party.RoomNotFoundException;
+import gg.utils.exception.party.RoomNotParticipantException;
 import gg.utils.exception.party.SelfReportException;
+import gg.utils.exception.user.UserNotFoundException;
 import lombok.RequiredArgsConstructor;
 
 @Service
 @RequiredArgsConstructor
 public class ReportService {
+	private static final int COMMENT_PENALTY_TIME = 1; // 댓글 패널티 시간 (분)
+	private static final int NO_SHOW_PENALTY_TIME = 6; // 노쇼 패널티 시간 (시간)
+	private static final int ROOM_PENALTY_TIME = 24; // 방 패널티 시간 (시간)
 	private final RoomRepository roomRepository;
 	private final CommentRepository commentRepository;
 	private final UserRepository userRepository;
@@ -42,6 +49,7 @@ public class ReportService {
 	private final CommentReportRepository commentReportRepository;
 	private final PartyPenaltyRepository partyPenaltyRepository;
 	private final UserRoomRepository userRoomRepository;
+	private final UserReportRepository userReportRepository;
 
 	/**
 	 * 방을 신고한다.
@@ -54,7 +62,7 @@ public class ReportService {
 	 * @throws AlredayReportedException 이미 신고한 경우
 	 */
 	@Transactional
-	public Long addReportRoom(Long roomId, ReportReqDto reportReqDto, UserDto user) {
+	public void addReportRoom(Long roomId, ReportReqDto reportReqDto, UserDto user) {
 		Room targetRoom = roomRepository.findById(roomId)
 			.orElseThrow(RoomNotFoundException::new);
 		User userEntity = userRepository.findById(user.getId()).get();
@@ -75,9 +83,8 @@ public Long addReportRoom(Long roomId, ReportReqDto reportReqDto, UserDto user)
 			targetRoom.updateRoomStatus(RoomType.HIDDEN);
 			roomRepository.save(targetRoom);
 			User targetUser = targetRoom.getCreator();
-			partyGivePenalty(targetUser.getIntraId(), 24, "방 패널티");
+			partyGivePenalty(targetUser.getIntraId(), ROOM_PENALTY_TIME, "방 패널티");
 		}
-		return roomId;
 	}
 
 	/**
@@ -91,7 +98,7 @@ public Long addReportRoom(Long roomId, ReportReqDto reportReqDto, UserDto user)
 	 * @throws AlredayReportedException 이미 신고한 경우
 	 */
 	@Transactional
-	public Long addReportComment(Long commentId, ReportReqDto reportReqDto, UserDto user) {
+	public void addReportComment(Long commentId, ReportReqDto reportReqDto, UserDto user) {
 		Comment targetComment = commentRepository.findById(commentId)
 			.orElseThrow(CommentNotFoundException::new);
 		User userEntity = userRepository.findById(user.getId()).get();
@@ -114,9 +121,50 @@ public Long addReportComment(Long commentId, ReportReqDto reportReqDto, UserDto
 			targetComment.updateHidden(true);
 			commentRepository.save(targetComment);
 			User targetUser = targetComment.getUser();
-			partyGivePenalty(targetUser.getIntraId(), 1, "댓글 패널티");
+			partyGivePenalty(targetUser.getIntraId(), COMMENT_PENALTY_TIME, "댓글 패널티");
+		}
+	}
+
+	/**
+	 * 유저 노쇼 신고한다.
+	 *
+	 * @param roomId       방 번호
+	 * @param reportReqDto 신고 내용
+	 * @param user         신고자
+	 * @param userIntraId  피신고자
+	 * @return 방 번호
+	 * @throws CommentNotFoundException 방을 찾을 수 없음
+	 * @throws AlredayReportedException 이미 신고한 경우
+	 */
+	@Transactional
+	public void addReportUser(Long roomId, ReportReqDto reportReqDto, String userIntraId, UserDto user) {
+		// 신고자와 피신고자가 같은 경우
+		if (Objects.equals(user.getIntraId(), userIntraId)) {
+			throw new SelfReportException();
+		}
+		// 신고자와 피신고자가 같은 방에 있는지 확인
+		User reporteeEntity = userRepository.findByIntraId(userIntraId)
+			.orElseThrow(UserNotFoundException::new);
+		UserRoom reporterUserRoom = userRoomRepository.findByUserIdAndRoomIdAndIsExistTrue(user.getId(), roomId)
+			.orElseThrow(RoomNotParticipantException::new);
+		userRoomRepository.findByUserIdAndRoomIdAndIsExistTrue(reporteeEntity.getId(), roomId)
+			.orElseThrow(RoomNotParticipantException::new);
+		User reporterEntity = reporterUserRoom.getUser();
+		Room targetRoom = reporterUserRoom.getRoom();
+		if (targetRoom == null) {
+			throw new RoomNotFoundException();
+		}
+		// 이미 신고한 경우
+		userReportRepository.findByReporterAndReportee(
+			reporterEntity, reporteeEntity).orElseThrow(AlredayReportedException::new);
+		// 신고 저장
+		UserReport userReport = new UserReport(reporterEntity, reporteeEntity, targetRoom, reportReqDto.getContent());
+		userReportRepository.save(userReport);
+		// 노쇼 패널티 판단
+		List<UserReport> allReportUser = userReportRepository.findByReporteeAndRoomId(reporteeEntity, roomId);
+		if (allReportUser.size() == targetRoom.getMaxPeople() / 2) {
+			partyGivePenalty(reporteeEntity.getIntraId(), NO_SHOW_PENALTY_TIME, "노쇼 패널티");
 		}
-		return commentId;
 	}
 
 	/**
diff --git a/gg-repo/src/main/java/gg/repo/party/UserReportRepository.java b/gg-repo/src/main/java/gg/repo/party/UserReportRepository.java
index 0dcdab4e7..eee65f8bc 100644
--- a/gg-repo/src/main/java/gg/repo/party/UserReportRepository.java
+++ b/gg-repo/src/main/java/gg/repo/party/UserReportRepository.java
@@ -1,13 +1,23 @@
 package gg.repo.party;
 
+import java.util.List;
+import java.util.Optional;
+
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 
 import gg.data.party.UserReport;
+import gg.data.user.User;
 
 public interface UserReportRepository extends JpaRepository<UserReport, Long> {
+	public Optional<UserReport> findByReporterAndReportee(User reporter, User reportee);
+
+	@Query("SELECT ur FROM UserReport ur JOIN FETCH ur.reportee "
+		+ "JOIN FETCH ur.room WHERE ur.reportee = :reportee AND ur.room.id = :roomId")
+	List<UserReport> findByReporteeAndRoomId(@Param("reportee") User reportee, @Param("roomId") Long roomId);
 
 	@Query(value = "SELECT ur FROM UserReport ur "
 		+ "JOIN FETCH ur.reporter "
diff --git a/gg-repo/src/main/java/gg/repo/party/UserRoomRepository.java b/gg-repo/src/main/java/gg/repo/party/UserRoomRepository.java
index da78569ff..57496e2fa 100644
--- a/gg-repo/src/main/java/gg/repo/party/UserRoomRepository.java
+++ b/gg-repo/src/main/java/gg/repo/party/UserRoomRepository.java
@@ -31,5 +31,7 @@ public interface UserRoomRepository extends JpaRepository<UserRoom, Long> {
 		+ "AND ur.isExist = true AND ur.room.status = 'OPEN'")
 	List<Room> findOpenRoomsByUserId(@Param("userId") Long userId);
 
-	Optional<UserRoom> findByUserIdAndRoomIdAndIsExistTrue(Long userId, Long roomId);
+	@Query("SELECT ur FROM UserRoom ur JOIN FETCH ur.user "
+		+ "JOIN FETCH ur.room WHERE ur.user.id = :userId AND ur.room.id = :roomId AND ur.isExist = true")
+	Optional<UserRoom> findByUserIdAndRoomIdAndIsExistTrue(@Param("userId") Long userId, @Param("roomId") Long roomId);
 }
diff --git a/gg-utils/src/main/java/gg/utils/exception/party/UserAlreadyInRoom.java b/gg-utils/src/main/java/gg/utils/exception/party/UserAlreadyInRoom.java
index 68f0b3b58..9a8f514ab 100644
--- a/gg-utils/src/main/java/gg/utils/exception/party/UserAlreadyInRoom.java
+++ b/gg-utils/src/main/java/gg/utils/exception/party/UserAlreadyInRoom.java
@@ -1,12 +1,10 @@
 package gg.utils.exception.party;
 
 import gg.utils.exception.ErrorCode;
+import gg.utils.exception.custom.DuplicationException;
 
-public class UserAlreadyInRoom extends RuntimeException {
-	private ErrorCode errorCode;
-
+public class UserAlreadyInRoom extends DuplicationException {
 	public UserAlreadyInRoom(ErrorCode errorCode) {
-		super(ErrorCode.USER_ALREADY_IN_ROOM.getMessage());
-		this.errorCode = errorCode;
+		super(ErrorCode.USER_ALREADY_IN_ROOM.getMessage(), ErrorCode.USER_ALREADY_IN_ROOM);
 	}
 }