diff --git a/NetworkBasic/NetworkBasic/Base.lproj/Main.storyboard b/NetworkBasic/NetworkBasic/Base.lproj/Main.storyboard
index b970bb5..76a0d97 100644
--- a/NetworkBasic/NetworkBasic/Base.lproj/Main.storyboard
+++ b/NetworkBasic/NetworkBasic/Base.lproj/Main.storyboard
@@ -438,7 +438,7 @@
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
                             <collectionView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" dataMode="prototypes" translatesAutoresizingMaskIntoConstraints="NO" id="tiY-hL-gUl">
-                                <rect key="frame" x="0.0" y="44" width="414" height="818"/>
+                                <rect key="frame" x="0.0" y="95" width="414" height="767"/>
                                 <color key="backgroundColor" systemColor="systemBackgroundColor"/>
                                 <collectionViewFlowLayout key="collectionViewLayout" minimumLineSpacing="10" minimumInteritemSpacing="10" id="5M3-Oq-fdv">
                                     <size key="itemSize" width="263" height="275"/>
@@ -472,18 +472,26 @@
                                     </collectionViewCell>
                                 </cells>
                             </collectionView>
+                            <searchBar contentMode="redraw" translatesAutoresizingMaskIntoConstraints="NO" id="Lav-GQ-1FD">
+                                <rect key="frame" x="0.0" y="44" width="414" height="51"/>
+                                <textInputTraits key="textInputTraits"/>
+                            </searchBar>
                         </subviews>
                         <viewLayoutGuide key="safeArea" id="oFB-x5-Kvi"/>
                         <color key="backgroundColor" systemColor="systemBackgroundColor"/>
                         <constraints>
                             <constraint firstItem="tiY-hL-gUl" firstAttribute="leading" secondItem="oFB-x5-Kvi" secondAttribute="leading" id="FgX-Nt-8Dj"/>
+                            <constraint firstItem="tiY-hL-gUl" firstAttribute="top" secondItem="Lav-GQ-1FD" secondAttribute="bottom" id="Vo6-ZG-YOm"/>
+                            <constraint firstItem="Lav-GQ-1FD" firstAttribute="leading" secondItem="oFB-x5-Kvi" secondAttribute="leading" id="Wtx-N4-GBb"/>
                             <constraint firstItem="oFB-x5-Kvi" firstAttribute="bottom" secondItem="tiY-hL-gUl" secondAttribute="bottom" id="YZD-cH-exS"/>
-                            <constraint firstItem="tiY-hL-gUl" firstAttribute="top" secondItem="oFB-x5-Kvi" secondAttribute="top" id="Zfd-9w-2Z4"/>
+                            <constraint firstItem="Lav-GQ-1FD" firstAttribute="trailing" secondItem="oFB-x5-Kvi" secondAttribute="trailing" id="gf8-2Z-ZA4"/>
                             <constraint firstItem="oFB-x5-Kvi" firstAttribute="trailing" secondItem="tiY-hL-gUl" secondAttribute="trailing" id="tLM-Ch-AcM"/>
+                            <constraint firstItem="Lav-GQ-1FD" firstAttribute="top" secondItem="oFB-x5-Kvi" secondAttribute="top" id="vIq-an-Pfj"/>
                         </constraints>
                     </view>
                     <connections>
                         <outlet property="collectionView" destination="tiY-hL-gUl" id="KN2-ZZ-Dn3"/>
+                        <outlet property="searchBar" destination="Lav-GQ-1FD" id="r6H-bj-hKy"/>
                     </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="PAw-DM-cSj" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
diff --git a/NetworkBasic/NetworkBasic/ImageSearchViewController.swift b/NetworkBasic/NetworkBasic/ImageSearchViewController.swift
index 9abd0a3..980b833 100644
--- a/NetworkBasic/NetworkBasic/ImageSearchViewController.swift
+++ b/NetworkBasic/NetworkBasic/ImageSearchViewController.swift
@@ -17,16 +17,17 @@ class ImageSearchViewController: UIViewController {
     var totalCount = 0
     
     @IBOutlet weak var collectionView: UICollectionView!
+    @IBOutlet weak var searchBar: UISearchBar!
     
     override func viewDidLoad() {
         super.viewDidLoad()
-        fetchImage()
+        searchBar.delegate = self
         configureCollectionView()
     }
     
     // fetchImage, requestImage, callRequestImage, getImage -> response에 따라 네이밍을 설정해주기도 함.
-    func fetchImage() {
-        let text = "클클클".addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
+    func fetchImage(query: String) {
+        let text = query.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
         let url = EndPoint.imageSearchURL + "query=\(text)&display=100&start=\(startPage)"
         let headers: HTTPHeaders = [
             "X-Naver-Client-Id": APIKey.NAVER_ID,
@@ -35,7 +36,7 @@ class ImageSearchViewController: UIViewController {
         
         AF.request(url, method: .get, headers: headers)
             .validate(statusCode: 200...500)
-            .responseJSON { response in
+            .responseData { response in
             switch response.result {
             case .success(let value):
                 let json = JSON(value)
@@ -54,6 +55,36 @@ class ImageSearchViewController: UIViewController {
     }
 }
 
+extension ImageSearchViewController: UISearchBarDelegate {
+    
+    // 검색 버튼 클릭 시 실행. (키보드 Return키에 디폴트 구현)
+    func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
+        
+        if let text = searchBar.text {
+            // 검색 결과가 계속 바뀌기 때문에, 그럴 때마다 초기화 해줄 필요가 있음
+            searchThumnailStrings.removeAll()
+            startPage = 1
+            collectionView.scrollsToTop = true
+            fetchImage(query: text)
+        }
+        
+        view.endEditing(true)
+    }
+    
+    // 취소 버튼 눌렀을 때 실행
+    func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
+        searchThumnailStrings.removeAll()
+        collectionView.reloadData()
+        searchBar.text = ""
+        searchBar.setShowsCancelButton(false, animated: true)
+    }
+    
+    // 서치바에 커서가 깜빡이기 시작할 때 실행
+    func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
+        searchBar.setShowsCancelButton(true, animated: true)
+    }
+}
+
 extension ImageSearchViewController: UICollectionViewDelegate, UICollectionViewDataSource {
     private func configureCollectionView() {
         collectionView.delegate = self
@@ -105,7 +136,7 @@ extension ImageSearchViewController: UICollectionViewDataSourcePrefetching {
         for indexPath in indexPaths {
             if searchThumnailStrings.indices.last == indexPath.item && searchThumnailStrings.count < totalCount {
                 startPage += 30
-                fetchImage()
+                fetchImage(query: searchBar.text!)
             }
         }
 //        print("===\(indexPaths)")