diff --git a/lib/core/TopScreen.dart b/lib/core/TopScreen.dart
index a74b809..df6bb3d 100644
--- a/lib/core/TopScreen.dart
+++ b/lib/core/TopScreen.dart
@@ -24,7 +24,7 @@ class TopScreen extends ConsumerWidget {
     final selectedIndex = ref.watch(selectedIndexProvider);
 
     final List<Widget> pages = [
-      OnboardingScreen(),
+      const OnboardingScreen(),
       const MatchScreen(),
       const LoginScreen(),
     ];
diff --git a/lib/feature/onboarding/OnboardingData.dart b/lib/feature/onboarding/OnboardingData.dart
index fbd11d7..ba10cf1 100644
--- a/lib/feature/onboarding/OnboardingData.dart
+++ b/lib/feature/onboarding/OnboardingData.dart
@@ -16,10 +16,6 @@ class OnboardingData {
       description: "사랑하는 사람들과 항상 연결되세요.",
       image: Assets.images.sample
     },
-    {
-      title: "시작하기",
-      description: "여정을 시작해봅시다!",
-      image: Assets.images.sample
-    },
+    {title: "시작하기", description: "여정을 시작해봅시다!", image: Assets.images.sample},
   ];
 }
diff --git a/lib/feature/onboarding/OnboardingScreen.dart b/lib/feature/onboarding/OnboardingScreen.dart
index 87db377..b09a38d 100644
--- a/lib/feature/onboarding/OnboardingScreen.dart
+++ b/lib/feature/onboarding/OnboardingScreen.dart
@@ -8,6 +8,8 @@ import 'widgets/OnboardingDotWidget.dart';
 import 'widgets/OnboardingPageButton.dart';
 
 class OnboardingScreen extends StatefulWidget {
+  const OnboardingScreen({super.key});
+
   @override
   _OnboardingScreenState createState() => _OnboardingScreenState();
 }
diff --git a/lib/feature/onboarding/widgets/OnboardingDotWidget.dart b/lib/feature/onboarding/widgets/OnboardingDotWidget.dart
index 7822b0b..8d3b6c2 100644
--- a/lib/feature/onboarding/widgets/OnboardingDotWidget.dart
+++ b/lib/feature/onboarding/widgets/OnboardingDotWidget.dart
@@ -5,8 +5,7 @@ import '../OnboardingData.dart';
 class OnboardingDotWidget extends StatelessWidget {
   final int currentPage;
 
-  const OnboardingDotWidget({Key? key, required this.currentPage})
-      : super(key: key);
+  const OnboardingDotWidget({super.key, required this.currentPage});
 
   @override
   Widget build(BuildContext context) {
diff --git a/lib/feature/onboarding/widgets/OnboardingPageButton.dart b/lib/feature/onboarding/widgets/OnboardingPageButton.dart
index 52f31b4..10921f7 100644
--- a/lib/feature/onboarding/widgets/OnboardingPageButton.dart
+++ b/lib/feature/onboarding/widgets/OnboardingPageButton.dart
@@ -8,10 +8,10 @@ class OnboardingPageButton extends StatelessWidget {
   final VoidCallback onNextPressed;
 
   const OnboardingPageButton({
-    Key? key,
+    super.key,
     required this.currentPage,
     required this.onNextPressed,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -21,13 +21,13 @@ class OnboardingPageButton extends StatelessWidget {
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(30),
         ),
-        padding: EdgeInsets.symmetric(horizontal: 50, vertical: 15),
+        padding: const EdgeInsets.symmetric(horizontal: 50, vertical: 15),
       ),
       child: Text(
         currentPage == OnboardingData.pageDataList.length - 1
             ? AppStrings.onboardingScreenButtonStart
             : AppStrings.onboardingScreenButtonNext,
-        style: TextStyle(fontSize: 18),
+        style: const TextStyle(fontSize: 18),
       ),
     );
   }
diff --git a/lib/feature/onboarding/widgets/OnboardingPageItem.dart b/lib/feature/onboarding/widgets/OnboardingPageItem.dart
index 422f24a..11633ca 100644
--- a/lib/feature/onboarding/widgets/OnboardingPageItem.dart
+++ b/lib/feature/onboarding/widgets/OnboardingPageItem.dart
@@ -6,7 +6,8 @@ class OnboardingPageItem extends StatelessWidget {
   final String description;
   final String image;
 
-  OnboardingPageItem({
+  const OnboardingPageItem({
+    super.key,
     required this.title,
     required this.description,
     required this.image,
@@ -20,19 +21,19 @@ class OnboardingPageItem extends StatelessWidget {
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
           SvgPicture.asset(image, height: 300),
-          SizedBox(height: 30),
+          const SizedBox(height: 30),
           Text(
             title,
-            style: TextStyle(
+            style: const TextStyle(
               fontSize: 24,
               fontWeight: FontWeight.bold,
             ),
           ),
-          SizedBox(height: 15),
+          const SizedBox(height: 15),
           Text(
             description,
             textAlign: TextAlign.center,
-            style: TextStyle(fontSize: 16),
+            style: const TextStyle(fontSize: 16),
           ),
         ],
       ),
diff --git a/lib/feature/onboarding/widgets/OnboardingPageViewBuilder.dart b/lib/feature/onboarding/widgets/OnboardingPageViewBuilder.dart
index db8bd69..d5703e9 100644
--- a/lib/feature/onboarding/widgets/OnboardingPageViewBuilder.dart
+++ b/lib/feature/onboarding/widgets/OnboardingPageViewBuilder.dart
@@ -8,10 +8,10 @@ class OnboardingPageViewBuilder extends StatelessWidget {
   final Function(int) onPageChanged;
 
   const OnboardingPageViewBuilder({
-    Key? key,
+    super.key,
     required this.pageController,
     required this.onPageChanged,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
diff --git a/lib/utils/AppStrings.dart b/lib/utils/AppStrings.dart
index b813c7c..fc461a8 100644
--- a/lib/utils/AppStrings.dart
+++ b/lib/utils/AppStrings.dart
@@ -185,5 +185,4 @@ class AppStrings {
   static const String onboardingDescription3 = '여정을 시작해봅시다!';
   static const String onboardingScreenButtonStart = '시작하기';
   static const String onboardingScreenButtonNext = '다음';
-
 }