diff --git a/src/main/java/com/jisungin/api/comment/CommentController.java b/src/main/java/com/jisungin/api/comment/CommentController.java
index 39f8e67..a6061cf 100644
--- a/src/main/java/com/jisungin/api/comment/CommentController.java
+++ b/src/main/java/com/jisungin/api/comment/CommentController.java
@@ -2,12 +2,14 @@
 
 import com.jisungin.api.ApiResponse;
 import com.jisungin.api.comment.request.CommentCreateRequest;
+import com.jisungin.api.comment.request.CommentEditRequest;
 import com.jisungin.api.oauth.Auth;
 import com.jisungin.api.oauth.AuthContext;
 import com.jisungin.application.comment.CommentService;
 import com.jisungin.application.comment.response.CommentResponse;
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.PatchMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -28,4 +30,11 @@ public ApiResponse<CommentResponse> writeComment(@PathVariable Long talkRoomId,
         return ApiResponse.ok(commentService.writeComment(request.toService(), talkRoomId, authContext.getUserId()));
     }
 
+    @PatchMapping("/talk-rooms/comments/{commentId}")
+    public ApiResponse<CommentResponse> editComment(@PathVariable Long commentId,
+                                                    @Valid @RequestBody CommentEditRequest request,
+                                                    @Auth AuthContext authContext) {
+        return ApiResponse.ok(commentService.editComment(commentId, request.toService(), authContext.getUserId()));
+    }
+
 }
diff --git a/src/main/java/com/jisungin/api/comment/request/CommentEditRequest.java b/src/main/java/com/jisungin/api/comment/request/CommentEditRequest.java
new file mode 100644
index 0000000..f6c816f
--- /dev/null
+++ b/src/main/java/com/jisungin/api/comment/request/CommentEditRequest.java
@@ -0,0 +1,25 @@
+package com.jisungin.api.comment.request;
+
+import com.jisungin.application.comment.request.CommentEditServiceRequest;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+public class CommentEditRequest {
+
+    private String content;
+
+    @Builder
+    private CommentEditRequest(String content) {
+        this.content = content;
+    }
+
+    public CommentEditServiceRequest toService() {
+        return CommentEditServiceRequest.builder()
+                .content(content)
+                .build();
+    }
+
+}
diff --git a/src/main/java/com/jisungin/application/comment/CommentService.java b/src/main/java/com/jisungin/application/comment/CommentService.java
index cb4e1b8..124230f 100644
--- a/src/main/java/com/jisungin/application/comment/CommentService.java
+++ b/src/main/java/com/jisungin/application/comment/CommentService.java
@@ -1,6 +1,7 @@
 package com.jisungin.application.comment;
 
 import com.jisungin.application.comment.request.CommentCreateServiceRequest;
+import com.jisungin.application.comment.request.CommentEditServiceRequest;
 import com.jisungin.application.comment.response.CommentResponse;
 import com.jisungin.domain.comment.Comment;
 import com.jisungin.domain.comment.repository.CommentRepository;
@@ -12,7 +13,9 @@
 import com.jisungin.exception.ErrorCode;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
+@Transactional(readOnly = true)
 @RequiredArgsConstructor
 @Service
 public class CommentService {
@@ -21,6 +24,7 @@ public class CommentService {
     private final TalkRoomRepository talkRoomRepository;
     private final UserRepository userRepository;
 
+    @Transactional
     public CommentResponse writeComment(CommentCreateServiceRequest request, Long talkRoomId, Long userId) {
         User user = userRepository.findById(userId)
                 .orElseThrow(() -> new BusinessException(ErrorCode.USER_NOT_FOUND));
@@ -35,4 +39,19 @@ public CommentResponse writeComment(CommentCreateServiceRequest request, Long ta
         return CommentResponse.of(comment.getContent(), user.getName());
     }
 
+    @Transactional
+    public CommentResponse editComment(Long commentId, CommentEditServiceRequest request, Long userId) {
+        Comment comment = commentRepository.findById(commentId)
+                .orElseThrow(() -> new BusinessException(ErrorCode.COMMENT_NOT_FOUND));
+
+        User user = userRepository.findById(userId).orElseThrow(() -> new BusinessException(ErrorCode.USER_NOT_FOUND));
+
+        if (!comment.isCommentOwner(user.getId())) {
+            throw new BusinessException(ErrorCode.UNAUTHORIZED_REQUEST);
+        }
+
+        comment.edit(request.getContent());
+
+        return CommentResponse.of(comment.getContent(), user.getName());
+    }
 }
diff --git a/src/main/java/com/jisungin/application/comment/request/CommentEditServiceRequest.java b/src/main/java/com/jisungin/application/comment/request/CommentEditServiceRequest.java
new file mode 100644
index 0000000..827a044
--- /dev/null
+++ b/src/main/java/com/jisungin/application/comment/request/CommentEditServiceRequest.java
@@ -0,0 +1,18 @@
+package com.jisungin.application.comment.request;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+public class CommentEditServiceRequest {
+
+    private String content;
+
+    @Builder
+    private CommentEditServiceRequest(String content) {
+        this.content = content;
+    }
+
+}
diff --git a/src/main/java/com/jisungin/application/talkroom/TalkRoomService.java b/src/main/java/com/jisungin/application/talkroom/TalkRoomService.java
index 19261ac..1d2780c 100644
--- a/src/main/java/com/jisungin/application/talkroom/TalkRoomService.java
+++ b/src/main/java/com/jisungin/application/talkroom/TalkRoomService.java
@@ -77,7 +77,7 @@ public TalkRoomResponse editTalkRoom(TalkRoomEditServiceRequest request, Long us
             throw new BusinessException(ErrorCode.UNAUTHORIZED_REQUEST);
         }
 
-        talkRoom.edit(request);
+        talkRoom.edit(request.getTitle(), request.getContent());
 
         talkRoomRoleRepository.deleteAllByTalkRoom(talkRoom);
 
diff --git a/src/main/java/com/jisungin/domain/comment/Comment.java b/src/main/java/com/jisungin/domain/comment/Comment.java
index 54b3a70..14fed2a 100644
--- a/src/main/java/com/jisungin/domain/comment/Comment.java
+++ b/src/main/java/com/jisungin/domain/comment/Comment.java
@@ -4,7 +4,15 @@
 import com.jisungin.domain.BaseEntity;
 import com.jisungin.domain.talkroom.TalkRoom;
 import com.jisungin.domain.user.User;
-import jakarta.persistence.*;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.Lob;
+import jakarta.persistence.ManyToOne;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
@@ -47,4 +55,12 @@ public static Comment create(CommentCreateServiceRequest request, User user, Tal
                 .build();
     }
 
+    public boolean isCommentOwner(Long userId) {
+        return user.isMe(userId);
+    }
+
+    public void edit(String requestContent) {
+        this.content = requestContent != null ? requestContent : content;
+    }
+
 }
diff --git a/src/main/java/com/jisungin/domain/talkroom/TalkRoom.java b/src/main/java/com/jisungin/domain/talkroom/TalkRoom.java
index 54392ba..e05b69e 100644
--- a/src/main/java/com/jisungin/domain/talkroom/TalkRoom.java
+++ b/src/main/java/com/jisungin/domain/talkroom/TalkRoom.java
@@ -1,6 +1,5 @@
 package com.jisungin.domain.talkroom;
 
-import com.jisungin.application.talkroom.request.TalkRoomEditServiceRequest;
 import com.jisungin.domain.BaseEntity;
 import com.jisungin.domain.book.Book;
 import com.jisungin.domain.user.User;
@@ -60,9 +59,9 @@ public static TalkRoom create(String title, String content, Book book, User user
                 .build();
     }
 
-    public void edit(TalkRoomEditServiceRequest request) {
-        this.title = request.getTitle() != null ? request.getTitle() : title;
-        this.content = request.getContent() != null ? request.getContent() : content;
+    public void edit(String requestTitle, String requestContent) {
+        this.title = requestTitle != null ? requestTitle : title;
+        this.content = requestContent != null ? requestContent : content;
     }
 
     public boolean isTalkRoomOwner(Long userId) {
diff --git a/src/main/java/com/jisungin/exception/ErrorCode.java b/src/main/java/com/jisungin/exception/ErrorCode.java
index c76938d..35b14b8 100644
--- a/src/main/java/com/jisungin/exception/ErrorCode.java
+++ b/src/main/java/com/jisungin/exception/ErrorCode.java
@@ -14,7 +14,8 @@ public enum ErrorCode {
     PARTICIPATION_CONDITION_ERROR(400, "참가 조건은 1개 이상이어야 합니다."),
     OAUTH_TYPE_NOT_FOUND(404, "지원하지 않는 소셜 로그인입니다."),
     TALK_ROOM_NOT_FOUND(400, "토크방을 찾을 수 없습니다."),
-    UNAUTHORIZED_REQUEST(400, "권한이 없는 사용자입니다.");
+    UNAUTHORIZED_REQUEST(400, "권한이 없는 사용자입니다."),
+    COMMENT_NOT_FOUND(404, "의견을 찾을 수 없습니다.");
 
 
     private final int code;