diff --git a/src/main/java/com/moabam/api/application/RoomService.java b/src/main/java/com/moabam/api/application/RoomService.java
index a855f1c9..94168e55 100644
--- a/src/main/java/com/moabam/api/application/RoomService.java
+++ b/src/main/java/com/moabam/api/application/RoomService.java
@@ -1,5 +1,7 @@
 package com.moabam.api.application;
 
+import static com.moabam.global.error.model.ErrorMessage.*;
+
 import java.util.List;
 
 import org.springframework.stereotype.Service;
@@ -12,7 +14,10 @@
 import com.moabam.api.domain.repository.RoomRepository;
 import com.moabam.api.domain.repository.RoutineRepository;
 import com.moabam.api.dto.CreateRoomRequest;
+import com.moabam.api.dto.ModifyRoomRequest;
 import com.moabam.api.dto.RoomMapper;
+import com.moabam.global.error.exception.ForbiddenException;
+import com.moabam.global.error.exception.NotFoundException;
 
 import lombok.RequiredArgsConstructor;
 
@@ -39,4 +44,21 @@ public void createRoom(Long memberId, CreateRoomRequest createRoomRequest) {
 		routineRepository.saveAll(routines);
 		participantRepository.save(participant);
 	}
+
+	@Transactional
+	public void modifyRoom(Long memberId, Long roomId, ModifyRoomRequest modifyRoomRequest) {
+		// TODO: 추후에 별도 메서드로 뺄듯
+		Participant participant = participantRepository.findParticipantByRoomIdAndMemberId(roomId, memberId)
+			.orElseThrow(() -> new NotFoundException(PARTICIPANT_NOT_FOUND));
+
+		if (!participant.isManager()) {
+			throw new ForbiddenException(ROOM_MODIFY_UNAUTHORIZED_REQUEST);
+		}
+
+		Room room = roomRepository.findById(roomId).orElseThrow(() -> new NotFoundException(ROOM_NOT_FOUND));
+		room.changeTitle(modifyRoomRequest.title());
+		room.changePassword(modifyRoomRequest.password());
+		room.changeCertifyTime(modifyRoomRequest.certifyTime());
+		room.changeMaxCount(modifyRoomRequest.maxUserCount());
+	}
 }
diff --git a/src/main/java/com/moabam/api/domain/entity/Room.java b/src/main/java/com/moabam/api/domain/entity/Room.java
index 5148c464..5e150acf 100644
--- a/src/main/java/com/moabam/api/domain/entity/Room.java
+++ b/src/main/java/com/moabam/api/domain/entity/Room.java
@@ -95,6 +95,22 @@ public void changeAnnouncement(String announcement) {
 		this.announcement = announcement;
 	}
 
+	public void changeTitle(String title) {
+		this.title = title;
+	}
+
+	public void changePassword(String password) {
+		this.password = password;
+	}
+
+	public void changeMaxCount(int maxUserCount) {
+		if (maxUserCount < this.currentUserCount) {
+			throw new BadRequestException(ROOM_MAX_USER_COUNT_MODIFY_FAIL);
+		}
+
+		this.maxUserCount = maxUserCount;
+	}
+
 	public void upgradeRoomImage(String roomImage) {
 		this.roomImage = roomImage;
 	}
diff --git a/src/main/java/com/moabam/api/domain/repository/ParticipantRepository.java b/src/main/java/com/moabam/api/domain/repository/ParticipantRepository.java
index 3f0a7bfc..be814a44 100644
--- a/src/main/java/com/moabam/api/domain/repository/ParticipantRepository.java
+++ b/src/main/java/com/moabam/api/domain/repository/ParticipantRepository.java
@@ -1,9 +1,12 @@
 package com.moabam.api.domain.repository;
 
+import java.util.Optional;
+
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import com.moabam.api.domain.entity.Participant;
 
 public interface ParticipantRepository extends JpaRepository<Participant, Long> {
 
+	Optional<Participant> findParticipantByRoomIdAndMemberId(Long roomId, Long MemberId);
 }
diff --git a/src/main/java/com/moabam/api/dto/ModifyRoomRequest.java b/src/main/java/com/moabam/api/dto/ModifyRoomRequest.java
new file mode 100644
index 00000000..4e24341a
--- /dev/null
+++ b/src/main/java/com/moabam/api/dto/ModifyRoomRequest.java
@@ -0,0 +1,15 @@
+package com.moabam.api.dto;
+
+import org.hibernate.validator.constraints.Range;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Pattern;
+
+public record ModifyRoomRequest(
+	@NotBlank String title,
+	@Pattern(regexp = "^(|[0-9]{4,8})$") String password,
+	@Range(min = 0, max = 23) int certifyTime,
+	@Range(min = 0, max = 10) int maxUserCount
+) {
+
+}
diff --git a/src/main/java/com/moabam/api/presentation/RoomController.java b/src/main/java/com/moabam/api/presentation/RoomController.java
index 9f01944e..c0edc651 100644
--- a/src/main/java/com/moabam/api/presentation/RoomController.java
+++ b/src/main/java/com/moabam/api/presentation/RoomController.java
@@ -1,7 +1,9 @@
 package com.moabam.api.presentation;
 
 import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseStatus;
@@ -9,6 +11,7 @@
 
 import com.moabam.api.application.RoomService;
 import com.moabam.api.dto.CreateRoomRequest;
+import com.moabam.api.dto.ModifyRoomRequest;
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
@@ -25,4 +28,11 @@ public class RoomController {
 	public void createRoom(@Valid @RequestBody CreateRoomRequest createRoomRequest) {
 		roomService.createRoom(1L, createRoomRequest);
 	}
+
+	@PutMapping("/{roomId}")
+	@ResponseStatus(HttpStatus.OK)
+	public void modifyRoom(@Valid @RequestBody ModifyRoomRequest modifyRoomRequest,
+		@PathVariable("roomId") Long roomId) {
+		roomService.modifyRoom(1L, roomId, modifyRoomRequest);
+	}
 }
diff --git a/src/main/java/com/moabam/global/error/model/ErrorMessage.java b/src/main/java/com/moabam/global/error/model/ErrorMessage.java
index 662874f6..dd05b455 100644
--- a/src/main/java/com/moabam/global/error/model/ErrorMessage.java
+++ b/src/main/java/com/moabam/global/error/model/ErrorMessage.java
@@ -7,7 +7,11 @@
 @RequiredArgsConstructor
 public enum ErrorMessage {
 
-	INVALID_REQUEST_FIELD("올바른 요청 정보가 아닙니다.");
+	INVALID_REQUEST_FIELD("올바른 요청 정보가 아닙니다."),
+	ROOM_NOT_FOUND("존재하지 않는 방 입니다."),
+	ROOM_MAX_USER_COUNT_MODIFY_FAIL("잘못된 최대 인원수 설정입니다."),
+	ROOM_MODIFY_UNAUTHORIZED_REQUEST("방장이 아닌 사용자는 방을 수정할 수 없습니다."),
+	PARTICIPANT_NOT_FOUND("방에 대한 참여자의 정보가 없습니다.");
 
 	private final String message;
 }