diff --git a/back/bookReviewList.js b/back/bookReviewList.js
index b4e59f84bc..ca2b886260 100644
--- a/back/bookReviewList.js
+++ b/back/bookReviewList.js
@@ -16,7 +16,7 @@ function spoilerFilter(reviewData, spoilerWord) { //리뷰 텍스트, 필터링
 let excludedPostIDs = [];
 let post_obj = [];
 
-async function bookList(post_id) {
+async function bookList(UID,post_id) {
     //MYSQL 연결
     console.log(post_id);
     const mysql = require('mysql2');
diff --git a/back/index.js b/back/index.js
index 6e531df45d..36c2aaee47 100644
--- a/back/index.js
+++ b/back/index.js
@@ -82,8 +82,9 @@ app.post('/api/ScrollView', async(req, res) => {
     const data =await recommendAlgo.runQueries(UID);
    res.json(data);
   }else{//post page
-    console.log(UID);
-    const data = await reviewListAlgo.bookList(postID);
+
+    const data = await reviewListAlgo.bookList(UID,postID);
+
     res.json(data);
   }
 });
diff --git a/front/src/components/PostViewPage.js b/front/src/components/PostViewPage.js
index 9ef6256464..d354a3303d 100644
--- a/front/src/components/PostViewPage.js
+++ b/front/src/components/PostViewPage.js
@@ -38,16 +38,19 @@ function PostViewPage() {
         .then((data)=>{
           console.log("data: ",data);
           console.log("url??: ",data.url);
-            console.log(`{url??}: ${data.url}`);
+          console.log(`{url??}: ${data.url}`);
           const li_ = [];
           li_.push(<li>제목: {data.name}</li>);
           li_.push(<li>작가: {data.author}</li>);
           li_.push(<input type='hidden' name='q' value={data.name}></input>);
-          li_.push(<li><button onClick={()=>{
-            (data.url!==null)?
-            (window.location.href=data.url):
-            (navigate('/post',{state: {isbn: data.isbn}}));
+          li_.push(<li><button onClick={()=>{navigate('/post',{state: {isbn: data.isbn}})
           }}>같은 책으로 후기 쓰러가기</button></li>);
+          li_.push(<li><button type="submit" onClick={(e)=>{
+            if(data.url!==null){// when url is null
+              e.preventDefault();// prevent submit
+              window.open(data.url, '_blank');//open url in a new tab
+            }
+          }}>책 정보 검색</button></li>);
           set_Li(prev_Li=>[...prev_Li,...li_]);
         })
         .catch(error => console.log(error));
@@ -131,7 +134,6 @@ function PostViewPage() {
       <form action="https://www.google.com/search" method="get" target="_blank">
         <ul className={styles.ul}>
           {_li}
-          <li><button type="submit">책 정보 검색</button></li>
         </ul>
       </form>
       </div>
diff --git a/front/src/components/SignIn.js b/front/src/components/SignIn.js
index 911db278e3..67e89074e4 100644
--- a/front/src/components/SignIn.js
+++ b/front/src/components/SignIn.js
@@ -12,6 +12,7 @@ function SignIn(){
             // const credential = GoogleAuthProvider.credentialFromResult(result);
             // const token = credential.accessToken;
             setUser(result.user);
+            
             fetch('/api/signIn',{
                 method:"POST",
                 headers: {