diff --git a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatmember/service/ChatMemberService.java b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatmember/service/ChatMemberService.java
index ae5f30c..17b8a2b 100644
--- a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatmember/service/ChatMemberService.java
+++ b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatmember/service/ChatMemberService.java
@@ -81,4 +81,8 @@ public ChatMember getChatMemberByChatRoomAndUsername(ChatRoom chatRoom, String u
         return chatMember;
     }
 
+    public ChatMember findByChatRoomAndChatUsername(ChatRoom chatRoom, String kickedUsername) {
+        return chatMemberRepository.findByChatRoomAndUsername(chatRoom, kickedUsername)
+                .orElseThrow(() -> new NotFoundChatMemberException(ErrorCode.NOT_FOUND_CHAT_MEMBER_ERROR));
+    }
 }
diff --git a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/controller/ChatRoomController.java b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/controller/ChatRoomController.java
index 4686038..af1e708 100644
--- a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/controller/ChatRoomController.java
+++ b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/controller/ChatRoomController.java
@@ -61,10 +61,10 @@ public ResponseEntity<List<ChatRoomResponse>> getAllChatRoom() {
     /**
      * 강퇴
      */
-    @PostMapping("/rooms/{roomId}/kicked/{chatMemberId}")
-    public ResponseEntity<KickMemberResponse> kickedMember(@PathVariable Long roomId, @PathVariable Long chatMemberId,
+    @PostMapping("/rooms/{roomId}/kicked/{username}")
+    public ResponseEntity<KickMemberResponse> kickedMember(@PathVariable Long roomId, @PathVariable String username,
                                                            @RequestBody ChatRoomRequest chatRoomRequest){
-        KickMemberResponse kickMemberResponse = chatRoomService.kickMember(roomId, chatMemberId, chatRoomRequest.getUsername());
+        KickMemberResponse kickMemberResponse = chatRoomService.kickMember(roomId, username, chatRoomRequest.getUsername());
         return ResponseEntity.status(HttpStatus.OK).body(kickMemberResponse);
     }
 
@@ -79,11 +79,20 @@ public ResponseEntity<ChangeOwnerResponse> changeOwner(@PathVariable Long roomId
     }
 
     /**
-     * 개별 방 조회
+     * 개별 방 조회 (채팅방 제목)
      */
-    @GetMapping("/rooms/{roomId}")
-    public ResponseEntity<OneChatRoomResponse> getChatRoom(@PathVariable Long roomId){
-        OneChatRoomResponse getChatRoom = chatRoomService.findChatRoom(roomId);
+    @GetMapping("/rooms/{roomId}/roomName")
+    public ResponseEntity<ChatRoomNameResponse> getChatRoomName(@PathVariable Long roomId){
+        ChatRoomNameResponse getChatRoom = chatRoomService.findChatRoom(roomId);
         return ResponseEntity.status(HttpStatus.OK).body(getChatRoom);
     }
+
+    /**
+     * 개별 방 조회 (참여자 수, 방장, 참여 멤버)
+     */
+    @GetMapping("/rooms/{roomId}/roomInformation")
+    public ResponseEntity<ChatRoomInfoResponse> getChatRoomInfo(@PathVariable Long roomId){
+        ChatRoomInfoResponse getChatRoomInfo = chatRoomService.findChatRoomInfo(roomId);
+        return ResponseEntity.status(HttpStatus.OK).body(getChatRoomInfo);
+    }
 }
diff --git a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/OneChatRoomResponse.java b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/ChatRoomInfoResponse.java
similarity index 73%
rename from backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/OneChatRoomResponse.java
rename to backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/ChatRoomInfoResponse.java
index 2d85a52..1249ef7 100644
--- a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/OneChatRoomResponse.java
+++ b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/ChatRoomInfoResponse.java
@@ -13,16 +13,14 @@
 @Builder
 @AllArgsConstructor
 @NoArgsConstructor
-public class OneChatRoomResponse {
+public class ChatRoomInfoResponse {
 
-    private String roomName;
     private Integer participation;
     private String owner;
     private List<ChatMemberResponse> chatMemberResponses;
 
-    public static OneChatRoomResponse of(ChatRoom chatRoom, List<ChatMemberResponse> chatMemberResponses){
-        return OneChatRoomResponse.builder()
-                .roomName(chatRoom.getRoomName())
+    public static ChatRoomInfoResponse of(ChatRoom chatRoom, List<ChatMemberResponse> chatMemberResponses){
+        return ChatRoomInfoResponse.builder()
                 .participation(chatRoom.getParticipation())
                 .owner(chatRoom.getOwner())
                 .chatMemberResponses(chatMemberResponses)
diff --git a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/ChatRoomNameResponse.java b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/ChatRoomNameResponse.java
new file mode 100644
index 0000000..d6e9951
--- /dev/null
+++ b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/dto/response/ChatRoomNameResponse.java
@@ -0,0 +1,25 @@
+package com.tadak.chatroomservice.domain.chatroom.dto.response;
+
+import com.tadak.chatroomservice.domain.chatmember.dto.response.ChatMemberResponse;
+import com.tadak.chatroomservice.domain.chatroom.entity.ChatRoom;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+
+@Getter
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class ChatRoomNameResponse {
+
+    private String roomName;
+
+    public static ChatRoomNameResponse from(ChatRoom chatRoom){
+        return ChatRoomNameResponse.builder()
+                .roomName(chatRoom.getRoomName())
+                .build();
+    }
+}
diff --git a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/service/ChatRoomService.java b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/service/ChatRoomService.java
index 072fd98..1943a36 100644
--- a/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/service/ChatRoomService.java
+++ b/backend/chatroom-service/src/main/java/com/tadak/chatroomservice/domain/chatroom/service/ChatRoomService.java
@@ -78,11 +78,11 @@ public void deleteChatRoom(Long roomId, String username) {
     }
 
     @Transactional
-    public KickMemberResponse kickMember(Long roomId, Long chatMemberId, String username) {
+    public KickMemberResponse kickMember(Long roomId, String kickedUsername, String owner) {
         ChatRoom chatRoom = findByChatRoom(roomId);
-        ChatMember chatMember = chatMemberService.findByChatMember(chatMemberId);
+        ChatMember chatMember = chatMemberService.findByChatRoomAndChatUsername(chatRoom, kickedUsername);
         // 방장 검증
-        validOwner(username, chatRoom.getOwner());
+        validOwner(owner, chatRoom.getOwner());
 
         // 상태를 KICKED로 변경
         chatMember.updateState();
@@ -126,12 +126,20 @@ public ChangeOwnerResponse changeOwner(Long roomId, String username, String owne
         return ChangeOwnerResponse.from(chatRoom);
     }
 
-    public OneChatRoomResponse findChatRoom(Long roomId) {
+    // 방 제목 엔드포인트
+    public ChatRoomNameResponse findChatRoom(Long roomId) {
+        ChatRoom chatRoom = findByChatRoom(roomId);
+
+        return ChatRoomNameResponse.from(chatRoom);
+    }
+
+    // 방장, 참여자 수, 참여 멤버 엔드포인트
+    public ChatRoomInfoResponse findChatRoomInfo(Long roomId) {
         ChatRoom chatRoom = findByChatRoom(roomId);
 
         List<ChatMemberResponse> chatMemberResponses = chatRoom.getChatMembers().stream()
                 .map(ChatMemberResponse::from).toList();
 
-        return OneChatRoomResponse.of(chatRoom, chatMemberResponses);
+        return ChatRoomInfoResponse.of(chatRoom, chatMemberResponses);
     }
 }