diff --git a/src/controller/boardController.js b/src/controller/boardController.js
index 35d5e33..bf99753 100644
--- a/src/controller/boardController.js
+++ b/src/controller/boardController.js
@@ -44,9 +44,10 @@ exports.getPost = async function (req, res) {
   
     // 게시글 조회
     const post = await boardProvider.retrievePost(PostIdx);
-    // 게시글 작성자, 제목, 내용, 작성 시간, 댓글 가져오기
+    // 게시글 작성자, 작성자 닉네임, 제목, 내용, 작성 시간, 댓글 가져오기
     const postDetails = {
         userId: post[0].userId,
+        nickName: post[0].nickName,
         Title: post[0].Title,
         mainText: post[0].mainText,
         createAt: post[0].createAt,
@@ -56,6 +57,7 @@ exports.getPost = async function (req, res) {
     return res.send(response(baseResponse.SUCCESS, postDetails));
 };
 
+
 // 게시글 수정
 exports.updatePost = async function (req, res) {
     const {PostIdx} = req.params;
diff --git a/src/dao/boardDao.js b/src/dao/boardDao.js
index 3960115..331f1b8 100644
--- a/src/dao/boardDao.js
+++ b/src/dao/boardDao.js
@@ -26,9 +26,10 @@ async function selectPosts(connection, postType) {
 // 게시글 상세보기
 async function getPost(connection, PostIdx) {
     const getPostQuery = `
-        SELECT userId, Title, mainText, createAt
+        SELECT Board.userId, User.nickName, Board.Title, Board.mainText, Board.createAt
         FROM Board
-        WHERE PostIdx = ?;
+        INNER JOIN User ON Board.userId = User.userId
+        WHERE Board.PostIdx = ?;
     `;
     const [postRow] = await connection.query(getPostQuery, PostIdx);
     return postRow;
@@ -37,14 +38,16 @@ async function getPost(connection, PostIdx) {
 // 게시글에 대한 댓글 조회
 async function selectComments(connection, PostIdx) {
     const selectCommentsQuery = `
-        SELECT CommentIdx, PostIdx, userId, contents, createAt
+        SELECT Comment.CommentIdx, Comment.PostIdx, Comment.userId, User.nickName, Comment.contents, Comment.createAt
         FROM Comment
-        WHERE PostIdx = ?;
+        INNER JOIN User ON Comment.userId = User.userId
+        WHERE Comment.PostIdx = ?;
     `;
     const [commentsRows] = await connection.query(selectCommentsQuery, PostIdx);
     return commentsRows;
 }
 
+
 // 게시글 작성자 조회
 async function selectPostUserId(connection, postIdx) {
     const selectPostUserIdQuery = `