diff --git a/NADA-iOS-forRelease/Sources/Cells/CardCell/CompanyFrontCardCell.swift b/NADA-iOS-forRelease/Sources/Cells/CardCell/CompanyFrontCardCell.swift
index c9bf44ad..8f1662f5 100644
--- a/NADA-iOS-forRelease/Sources/Cells/CardCell/CompanyFrontCardCell.swift
+++ b/NADA-iOS-forRelease/Sources/Cells/CardCell/CompanyFrontCardCell.swift
@@ -15,6 +15,7 @@ class CompanyFrontCardCell: CardCell {
     // MARK: - Properties
     
     private var cardData: Card?
+    private var setConstraintDone = false
     
     // MARK: - @IBOutlet Properties
     @IBOutlet weak var backgroundImageView: UIImageView!
@@ -97,6 +98,9 @@ extension CompanyFrontCardCell {
         linkURLStackView.alignment = .center
     }
     func setConstraints() {
+        if setConstraintDone { return }
+        setConstraintDone = true
+        
         let constraints = [titleLabelTop, titleLabelLeading, descLabelTop,
                            userNameLabelTop, birthdayImageTop, mbtiImageLeading, totalStackviewBottom, totalStackviewLeading, totalStackviewTrailing]
         let labels = [titleLabel, descriptionLabel, userNameLabel, birthLabel, mbtiLabel, phoneNumberLabel, linkURLLabel, mailLabel]
diff --git a/NADA-iOS-forRelease/Sources/Cells/CardCell/FanFrontCardCell.swift b/NADA-iOS-forRelease/Sources/Cells/CardCell/FanFrontCardCell.swift
index d2a4d63e..cd90ddb9 100644
--- a/NADA-iOS-forRelease/Sources/Cells/CardCell/FanFrontCardCell.swift
+++ b/NADA-iOS-forRelease/Sources/Cells/CardCell/FanFrontCardCell.swift
@@ -14,6 +14,7 @@ class FanFrontCardCell: CardCell {
     // MARK: - Properties
     
     private var cardData: Card?
+    private var setConstraintDone = false
     
     // MARK: - @IBOutlet Properties
     @IBOutlet weak var backgroundImageView: UIImageView!
@@ -90,10 +91,14 @@ extension FanFrontCardCell {
         secondURLStackView.alignment = .center
     }
     func setConstraints() {
+        if setConstraintDone { return }
+        setConstraintDone = true
+        
         let constraints = [titleLabelTop, titleLabelBottom, titleLabelLeading,
                            userNameBottom, totalStackviewBottom, totalStackviewLeading, totalStackviewTrailing]
         let labels = [titleLabel, userNameLabel, birthLabel, snsLabel, firstURLLabel, secondURLLabel]
         let widths = [birthImageViewWidth, snsImageViewWidth, firstUrlWidth, secondUrlWidth]
+        
         constraints.forEach {
             $0?.constant = ($0?.constant ?? 0) * 0.6
         }
diff --git a/NADA-iOS-forRelease/Sources/Cells/CardCell/FrontCardCell.swift b/NADA-iOS-forRelease/Sources/Cells/CardCell/FrontCardCell.swift
index d35b33b8..e69dcae2 100644
--- a/NADA-iOS-forRelease/Sources/Cells/CardCell/FrontCardCell.swift
+++ b/NADA-iOS-forRelease/Sources/Cells/CardCell/FrontCardCell.swift
@@ -14,6 +14,7 @@ class FrontCardCell: CardCell {
     // MARK: - Properties
     
     private var cardData: Card?
+    private var setConstraintDone = false
     
     // MARK: - @IBOutlet Properties
     @IBOutlet weak var backgroundImageView: UIImageView!
@@ -96,10 +97,14 @@ extension FrontCardCell {
         linkURLStackView.alignment = .center
     }
     func setConstraints() {
+        if setConstraintDone { return }
+        setConstraintDone = true
+        
         let constraints = [titleLabelTop, titleLabelLeading, descLabelTop,
                            usernameLabelTop, birthdayImageTop, mbtiImageLeading, totalStackViewBottom, totalStackViewLeading, totalStackViewTrailing]
         let labels = [titleLabel, descriptionLabel, userNameLabel, birthLabel, mbtiLabel, instagramIDLabel, phoneNumberLabel, linkURLLabel]
         let widths = [birthdayImageWidth, phoneImageWidth, urlImageWidth, mbtiImageWidth]
+        
         constraints.forEach {
             $0?.constant = ($0?.constant ?? 0) * 0.6
         }
diff --git a/NADA-iOS-forRelease/Sources/NetworkService/Group/GroupService.swift b/NADA-iOS-forRelease/Sources/NetworkService/Group/GroupService.swift
index 9b9f8688..47353d10 100644
--- a/NADA-iOS-forRelease/Sources/NetworkService/Group/GroupService.swift
+++ b/NADA-iOS-forRelease/Sources/NetworkService/Group/GroupService.swift
@@ -92,9 +92,14 @@ extension GroupService: TargetType {
                                                    "cardUUID": groupRequest.cardUUID],
                                       encoding: JSONEncoding.default)
         case .cardListFetchInGroup(let cardListInGroupRequest):
-            return .requestParameters(parameters: ["pageNo": cardListInGroupRequest.pageNo,
-                                                   "pageSize": cardListInGroupRequest.pageSize,
-                                                   "groupName": cardListInGroupRequest.groupName], encoding: URLEncoding.queryString)
+            if cardListInGroupRequest.groupName == "미분류" {
+                return .requestParameters(parameters: ["pageNo": cardListInGroupRequest.pageNo,
+                                                       "pageSize": cardListInGroupRequest.pageSize], encoding: URLEncoding.queryString)
+            } else {
+                return .requestParameters(parameters: ["pageNo": cardListInGroupRequest.pageNo,
+                                                       "pageSize": cardListInGroupRequest.pageSize,
+                                                       "groupName": cardListInGroupRequest.groupName], encoding: URLEncoding.queryString)
+            }
         }
     }
     
diff --git a/NADA-iOS-forRelease/Sources/ViewControllers/Group/GroupViewController.swift b/NADA-iOS-forRelease/Sources/ViewControllers/Group/GroupViewController.swift
index 0091d16c..3f4641df 100644
--- a/NADA-iOS-forRelease/Sources/ViewControllers/Group/GroupViewController.swift
+++ b/NADA-iOS-forRelease/Sources/ViewControllers/Group/GroupViewController.swift
@@ -94,7 +94,7 @@ class GroupViewController: UIViewController {
     var serverGroups: [String]? = []
     var frontCards: [Card]? = []
     var serverCardsWithBack: Card?
-    var groupName: String = ""
+    var groupName: String = "미분류"
     
     var selectedRow = 0
     private var offset = 0
@@ -187,7 +187,6 @@ extension GroupViewController {
                     self.serverGroups = group
                     self.groupCollectionView.reloadData()
                     print("selectedRow: ", self.selectedRow)
-                    if group[self.selectedRow] != "미분류" { self.groupName = group[self.selectedRow] }
                     self.cardListInGroupWithAPI(cardListInGroupRequest: CardListInGroupRequest(pageNo: 1, pageSize: 6, groupName: self.groupName)) {
                         if self.frontCards?.count != 0 {
                             self.cardsCollectionView.scrollToItem(at: IndexPath(item: 0, section: 0), at: .top, animated: false)
@@ -347,11 +346,7 @@ extension GroupViewController: UICollectionViewDataSource {
         switch collectionView {
         case groupCollectionView:
             selectedRow = indexPath.row
-            if selectedRow == 0 {
-                self.groupName = ""
-            } else {
-                self.groupName = serverGroups?[indexPath.row] ?? ""
-            }
+            self.groupName = serverGroups?[indexPath.row] ?? ""
             offset = 0
             frontCards?.removeAll()
             
diff --git a/NADA-iOS-forRelease/Sources/ViewControllers/Home/VC/HomeViewController.swift b/NADA-iOS-forRelease/Sources/ViewControllers/Home/VC/HomeViewController.swift
index 26d1656f..42687fc1 100644
--- a/NADA-iOS-forRelease/Sources/ViewControllers/Home/VC/HomeViewController.swift
+++ b/NADA-iOS-forRelease/Sources/ViewControllers/Home/VC/HomeViewController.swift
@@ -293,7 +293,7 @@ extension HomeViewController {
         }
     }
     private func cardAddInGroupWithAPI(cardUUID: String, completion: @escaping () -> Void) {
-        GroupAPI.shared.cardAddInGroup(cardRequest: CardAddInGroupRequest(cardGroupName: nil, cardUUID: cardUUID)) { response in
+        GroupAPI.shared.cardAddInGroup(cardRequest: CardAddInGroupRequest(cardGroupName: "미분류", cardUUID: cardUUID)) { response in
             switch response {
             case .success:
                 completion()