diff --git a/Projects/CommonUI/Sources/Component/LMTextField.swift b/Projects/CommonUI/Sources/Component/LMTextField.swift
index 8ff54c3..6bc57c2 100644
--- a/Projects/CommonUI/Sources/Component/LMTextField.swift
+++ b/Projects/CommonUI/Sources/Component/LMTextField.swift
@@ -52,4 +52,8 @@ public class LMTextField: UITextField {
             $0.height.equalTo(55)
         }
     }
+
+    public func currentText() -> String {
+        return self.text ?? ""
+    }
 }
diff --git a/Projects/CommonUI/Sources/View/Login/SignInView.swift b/Projects/CommonUI/Sources/View/Login/SignInView.swift
index b986f98..70deb08 100644
--- a/Projects/CommonUI/Sources/View/Login/SignInView.swift
+++ b/Projects/CommonUI/Sources/View/Login/SignInView.swift
@@ -19,12 +19,13 @@ open class SignInView: UIView {
     }
 
     var textFieldStackView = UIStackView()
-    var idTextField = LMTextField()
-    var passwordTextField = LMTextField()
-    var loginButton = LMButton(textColor: CommonUIAssets.LMBlack,
+    public var idTextField = LMTextField()
+    public var passwordTextField = LMTextField()
+    var signInButton = LMButton(textColor: CommonUIAssets.LMBlack,
                                bgColor: CommonUIAssets.LMOrange1)
     var signUpButton = UIButton()
 
+    public let signInTapped = PublishRelay<Void>()
     public let signUpTapped = PublishRelay<Void>()
     private let disposeBag = DisposeBag()
 
@@ -40,6 +41,10 @@ open class SignInView: UIView {
     }
 
     func bindEvents() {
+        signInButton.rx.tap
+            .bind(to: signInTapped)
+            .disposed(by: disposeBag)
+
         signUpButton.rx.tap
             .bind(to: signUpTapped)
             .disposed(by: disposeBag)
@@ -63,7 +68,7 @@ open class SignInView: UIView {
             $0.isSecureTextEntry = true
         }
 
-        loginButton = loginButton.then {
+        signInButton = signInButton.then {
             $0.setTitle("로그인", for: .normal)
         }
 
@@ -84,7 +89,7 @@ open class SignInView: UIView {
     }
 
     func initUI() {
-        [logoView, textFieldStackView, loginButton, signUpButton]
+        [logoView, textFieldStackView, signInButton, signUpButton]
             .forEach { addSubview($0) }
 
         [idTextField, passwordTextField]
@@ -102,14 +107,14 @@ open class SignInView: UIView {
             $0.height.equalTo(130)
         }
 
-        loginButton.snp.makeConstraints {
+        signInButton.snp.makeConstraints {
             $0.top.equalTo(textFieldStackView.snp.bottom).offset(33)
             $0.centerX.equalToSuperview()
             $0.horizontalEdges.equalToSuperview().inset(20)
         }
 
         signUpButton.snp.makeConstraints {
-            $0.top.equalTo(loginButton.snp.bottom).offset(35)
+            $0.top.equalTo(signInButton.snp.bottom).offset(35)
             $0.centerX.equalToSuperview()
             $0.height.equalTo(27)
         }
diff --git a/Projects/Data/Sources/DTO/LoginDTO.swift b/Projects/Data/Sources/DTO/LoginDTO.swift
index 50d10a5..8904d3a 100644
--- a/Projects/Data/Sources/DTO/LoginDTO.swift
+++ b/Projects/Data/Sources/DTO/LoginDTO.swift
@@ -9,10 +9,29 @@ import Foundation
 import Domain
 
 public struct LoginDTO: Decodable {
+    public let is_success: Bool
+    public let code: String
+    public let message: String
+    public let data: LoginDataDTO
+}
+
+public struct LoginDataDTO: Decodable {
     public let accessToken: String
+    public let refreshToken: String
 }
 
 extension LoginDTO {
+    func getMessage() -> LoginVO {
+        return .init(accessToken: data.accessToken,
+                     refreshToken: data.refreshToken)
+    }
+}
+
+public struct GoogleLoginDTO: Decodable {
+    public let accessToken: String
+}
+
+extension GoogleLoginDTO {
 //    func toDomain() -> CourseVO {
 //        return CourseVO(courseLv: 1,
 //                        courseDescription: "courseDescription",
diff --git a/Projects/Data/Sources/Repository/LoginRepository.swift b/Projects/Data/Sources/Repository/LoginRepository.swift
index d02a447..26f7786 100644
--- a/Projects/Data/Sources/Repository/LoginRepository.swift
+++ b/Projects/Data/Sources/Repository/LoginRepository.swift
@@ -13,17 +13,17 @@ import Foundation
 public class DefaultLoginRepository: LoginRepository {
     public init() {}
 
-    public func postGoogleLogin() -> Single<LoginVO> {
+    public func postGoogleLogin() -> Single<GoogleLoginVO> {
         return request(
             endpoint: "/oauth2/authorization/google",
-            responseType: LoginDTO.self
+            responseType: GoogleLoginDTO.self
         )
         .map { dto in
-            return LoginVO(accessToken: "")
+            return GoogleLoginVO(accessToken: "")
         }
     }
 
-    public func postAppleLogin(userName: String?, identityToken: String) -> Single<LoginVO> {
+    public func postAppleLogin(userName: String?, identityToken: String) -> Single<GoogleLoginVO> {
         let params: Parameters = [
             "userName": userName,
             "identityToken": identityToken
@@ -52,7 +52,7 @@ public class DefaultLoginRepository: LoginRepository {
                        let components = URLComponents(string: location) {
                         let items = components.queryItems ?? []
                         let accessToken = items.first(where: { $0.name == "accessToken" })?.value
-                        single(.success(LoginVO(accessToken: accessToken)))
+                        single(.success(GoogleLoginVO(accessToken: accessToken)))
                     } else {
                         let error = NSError(domain: "DefaultLoginRepository",
                                             code: -1,
diff --git a/Projects/Data/Sources/Repository/SignRepository.swift b/Projects/Data/Sources/Repository/SignRepository.swift
index 123bb61..d54b8b2 100644
--- a/Projects/Data/Sources/Repository/SignRepository.swift
+++ b/Projects/Data/Sources/Repository/SignRepository.swift
@@ -13,6 +13,17 @@ public class DefaultSignRepository: SignRepository {
 
     public init() { }
 
+    public func postSignIn(email: String, password: String) -> Single<LoginVO> {
+        let params = ["email": email,
+                      "password": password]
+        return request(endpoint: "/api/auth/sign-in",
+                       parameters: params,
+                       responseType: LoginDTO.self)
+        .map { dto in
+            return dto.getMessage()
+        }
+    }
+
     public func postEmail(email: String) -> Single<DefaultVO> {
         let params = ["email": email]
         return request(endpoint: "/api/auth/email",
@@ -24,7 +35,8 @@ public class DefaultSignRepository: SignRepository {
     }
 
     public func postConfirm(email: String, code: String) -> Single<DefaultVO> {
-        let params = ["email": email, "code": code]
+        let params = ["email": email,
+                      "code": code]
         return request(endpoint: "/api/auth/email/confirm",
                        parameters: params,
                        responseType: DefaultDTO.self)
@@ -34,7 +46,9 @@ public class DefaultSignRepository: SignRepository {
     }
 
     public func postSignUp(username: String, email: String, password: String) -> Single<DefaultVO> {
-        let params = ["username": username, "email": email, "password": password]
+        let params = ["username": username,
+                      "email": email,
+                      "password": password]
         return request(endpoint: "/api/auth/sign-up",
                        parameters: params,
                        responseType: DefaultDTO.self)
diff --git a/Projects/Data/Sources/Repository/TokenRepository.swift b/Projects/Data/Sources/Repository/TokenRepository.swift
index a071d9f..59438cd 100644
--- a/Projects/Data/Sources/Repository/TokenRepository.swift
+++ b/Projects/Data/Sources/Repository/TokenRepository.swift
@@ -10,23 +10,38 @@ import Foundation
 
 public class DefaultTokenRepository: TokenRepository {
     private let userDefaults = UserDefaults.standard
-    private let accessTokenKey = "accessToken"
+    private let accessToken = "accessToken"
+    private let refreshToken = "refreshToken"
     
     public init() {
         // Initialization if needed
     }
     
     public func saveAccessToken(_ token: String) {
-        userDefaults.set(token, forKey: accessTokenKey)
+        userDefaults.set(token, forKey: accessToken)
         print("✅ Access Token saved: \(token)")
     }
     
     public func getAccessToken() -> String? {
-        return userDefaults.string(forKey: accessTokenKey)
+        return userDefaults.string(forKey: accessToken)
     }
     
     public func clearAccessToken() {
-        userDefaults.removeObject(forKey: accessTokenKey)
+        userDefaults.removeObject(forKey: accessToken)
         print("🗑️ Access Token cleared")
     }
+
+    public func saveRefreshToken(token: String) {
+        userDefaults.set(token, forKey: refreshToken)
+        print("✅ Refresh Token saved: \(token)")
+    }
+    
+    public func getRefreshToken() -> String? {
+        return userDefaults.string(forKey: refreshToken)
+    }
+    
+    public func clearRefreshToken() {
+        userDefaults.removeObject(forKey: refreshToken)
+        print("🗑️ Refresh Token cleared")
+    }
 }
diff --git a/Projects/Domain/Sources/RepositoryProtocol/LoginRepository.swift b/Projects/Domain/Sources/RepositoryProtocol/LoginRepository.swift
index 34607d1..1a7560a 100644
--- a/Projects/Domain/Sources/RepositoryProtocol/LoginRepository.swift
+++ b/Projects/Domain/Sources/RepositoryProtocol/LoginRepository.swift
@@ -8,6 +8,6 @@
 import RxSwift
 
 public protocol LoginRepository {
-    func postGoogleLogin() -> Single<LoginVO>
-    func postAppleLogin(userName: String?, identityToken: String) -> Single<LoginVO>
+    func postGoogleLogin() -> Single<GoogleLoginVO>
+    func postAppleLogin(userName: String?, identityToken: String) -> Single<GoogleLoginVO>
 }
diff --git a/Projects/Domain/Sources/RepositoryProtocol/SignRepository.swift b/Projects/Domain/Sources/RepositoryProtocol/SignRepository.swift
index 8f231b5..4eda6b7 100644
--- a/Projects/Domain/Sources/RepositoryProtocol/SignRepository.swift
+++ b/Projects/Domain/Sources/RepositoryProtocol/SignRepository.swift
@@ -8,6 +8,7 @@
 import RxSwift
 
 public protocol SignRepository {
+    func postSignIn(email: String, password: String) -> Single<LoginVO>
     func postEmail(email: String) -> Single<DefaultVO>
     func postConfirm(email: String, code: String) -> Single<DefaultVO>
     func postSignUp(username: String, email: String, password: String) -> Single<DefaultVO>
diff --git a/Projects/Domain/Sources/RepositoryProtocol/TokenRepository.swift b/Projects/Domain/Sources/RepositoryProtocol/TokenRepository.swift
index a80d27b..19a27af 100644
--- a/Projects/Domain/Sources/RepositoryProtocol/TokenRepository.swift
+++ b/Projects/Domain/Sources/RepositoryProtocol/TokenRepository.swift
@@ -8,7 +8,10 @@
 import RxSwift
 
 public protocol TokenRepository {
-    func saveAccessToken(_ token: String)
+    func saveAccessToken(token: String)
     func getAccessToken() -> String?
     func clearAccessToken()
+    func saveRefreshToken(token: String)
+    func getRefreshToken() -> String?
+    func clearRefreshToken()
 }
diff --git a/Projects/Domain/Sources/UseCase/Login/LoginUseCase.swift b/Projects/Domain/Sources/UseCase/Login/LoginUseCase.swift
index 77625bf..cde1ec8 100644
--- a/Projects/Domain/Sources/UseCase/Login/LoginUseCase.swift
+++ b/Projects/Domain/Sources/UseCase/Login/LoginUseCase.swift
@@ -8,8 +8,8 @@
 import RxSwift
 
 public protocol LoginUseCase {
-    func postGoogleLogin() -> Single<LoginVO>
-    func postAppleLogin(userName: String?, identityToken: String) -> Single<LoginVO>
+    func postGoogleLogin() -> Single<GoogleLoginVO>
+    func postAppleLogin(userName: String?, identityToken: String) -> Single<GoogleLoginVO>
 }
 
 public final class DefaultLoginUseCase: LoginUseCase {
@@ -19,11 +19,11 @@ public final class DefaultLoginUseCase: LoginUseCase {
         self.repository = repository
     }
 
-    public func postGoogleLogin() -> Single<LoginVO> {
+    public func postGoogleLogin() -> Single<GoogleLoginVO> {
         return repository.postGoogleLogin()
     }
 
-    public func postAppleLogin(userName: String?, identityToken: String) -> Single<LoginVO> {
+    public func postAppleLogin(userName: String?, identityToken: String) -> Single<GoogleLoginVO> {
         return repository.postAppleLogin(userName: userName, identityToken: identityToken)
     }
 }
diff --git a/Projects/Domain/Sources/UseCase/Login/SignUseCase.swift b/Projects/Domain/Sources/UseCase/Login/SignUseCase.swift
index d47e6a2..cf44439 100644
--- a/Projects/Domain/Sources/UseCase/Login/SignUseCase.swift
+++ b/Projects/Domain/Sources/UseCase/Login/SignUseCase.swift
@@ -8,6 +8,7 @@
 import RxSwift
 
 public protocol SignUseCase {
+    func postSignIn(email: String, password: String) -> Single<LoginVO>
     func postEmail(email: String) -> Single<DefaultVO>
     func postConfirm(email: String, code: String) -> Single<DefaultVO>
     func postSignUp(username: String, email: String, password: String) -> Single<DefaultVO>
@@ -20,6 +21,10 @@ public final class DefaultSignUseCase: SignUseCase {
         self.repository = repository
     }
 
+    public func postSignIn(email: String, password: String) -> Single<LoginVO> {
+        return repository.postSignIn(email: email, password: password)
+    }
+
     public func postEmail(email: String) -> Single<DefaultVO> {
         return repository.postEmail(email: email)
     }
diff --git a/Projects/Domain/Sources/VO/LoginVO.swift b/Projects/Domain/Sources/VO/LoginVO.swift
index 6853246..3a042d1 100644
--- a/Projects/Domain/Sources/VO/LoginVO.swift
+++ b/Projects/Domain/Sources/VO/LoginVO.swift
@@ -5,16 +5,19 @@
 //  Created by 박지윤 on 7/16/25.
 //
 
-//public struct LoginVO {
-//    public let list: [CourseVO]
-//
-//    public init(list: [CourseVO]) {
-//            self.list = list
-//    }
-//}
-
 public struct LoginVO {
     public let accessToken: String?
+    public let refreshToken: String?
+
+    public init(accessToken: String?,
+                refreshToken: String?) {
+        self.accessToken = accessToken
+        self.refreshToken = refreshToken
+    }
+}
+
+public struct GoogleLoginVO {
+    public let accessToken: String?
 
     public init(accessToken: String?) {
         self.accessToken = accessToken
diff --git a/Projects/LearnMate/Sources/Coordinator/AppCoordinator.swift b/Projects/LearnMate/Sources/Coordinator/AppCoordinator.swift
index f92d587..1e04d7c 100644
--- a/Projects/LearnMate/Sources/Coordinator/AppCoordinator.swift
+++ b/Projects/LearnMate/Sources/Coordinator/AppCoordinator.swift
@@ -15,6 +15,7 @@ protocol AppCoordinator: Coordinator {
     func showTabbarFlow()
     func setTabBarCoordinator()
     func getChildCoordinator(_ type: CoordinatorType) -> Coordinator?
+    func showHomeAfterLogin()
 }
 
 final class DefaultAppCoordinator: AppCoordinator{
@@ -44,6 +45,10 @@ final class DefaultAppCoordinator: AppCoordinator{
                 let signUpViewController = self.dependency.injector.resolve(SignUpViewController.self)
                 self.navigationController.pushViewController(signUpViewController, animated: true)
             }
+            signInViewController.onLoginSuccess = { [weak self] in
+                guard let self else { return }
+                self.showHomeAfterLogin()
+            }
             self.navigationController.pushViewController(signInViewController, animated: true)
         }
         self.navigationController.pushViewController(loginViewController, animated: true)
@@ -59,6 +64,13 @@ final class DefaultAppCoordinator: AppCoordinator{
         tabBarCoordinator.start()
     }
 
+    /// 로그인 성공 후 홈으로 이동
+    func showHomeAfterLogin() {
+        // 로그인 관련 뷰컨트롤러들을 모두 제거하고 탭바로 이동
+        navigationController.viewControllers.removeAll()
+        showTabbarFlow()
+    }
+
     /// 탭바 컨트롤러 세팅, 자식 코디네이터로 등록
     func setTabBarCoordinator() {
         let dependency = DefaultTabBarController.Dependency.init(
diff --git a/Projects/LearnMate/Sources/DI/LoginAssembly.swift b/Projects/LearnMate/Sources/DI/LoginAssembly.swift
index f3981cc..e09a32d 100644
--- a/Projects/LearnMate/Sources/DI/LoginAssembly.swift
+++ b/Projects/LearnMate/Sources/DI/LoginAssembly.swift
@@ -28,7 +28,8 @@ public struct LoginAssembly: Assembly {
         /// Sign DI 등록
         container.register(SignViewModel.self) { resolver in
             let useCase = resolver.resolve(SignUseCase.self)!
-            return SignViewModel(signUseCase: useCase)
+            let tokenRepository = resolver.resolve(TokenRepository.self)!
+            return SignViewModel(signUseCase: useCase, tokenRepository: tokenRepository)
         }
         
         container.register(SignInViewController.self) { resolver in
diff --git a/Projects/Login/Sources/View/SignInViewController.swift b/Projects/Login/Sources/View/SignInViewController.swift
index e6c5871..871bf97 100644
--- a/Projects/Login/Sources/View/SignInViewController.swift
+++ b/Projects/Login/Sources/View/SignInViewController.swift
@@ -20,6 +20,7 @@ public class SignInViewController: BaseViewController {
 
     let signInView = SignInView()
     public var onPresentSignUp: (() -> Void)?
+    public var onLoginSuccess: (() -> Void)?
 
     public init(signViewModel: SignViewModel) {
         self.viewModel = signViewModel
@@ -32,7 +33,6 @@ public class SignInViewController: BaseViewController {
 
     public override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
-//        self.navigationController?.setNavigationBarHidden(, animated: false)
     }
 
     public override func viewDidLoad() {
@@ -42,6 +42,17 @@ public class SignInViewController: BaseViewController {
     }
 
     private func bindActions() {
+        signInView.signInTapped
+            .bind { [weak self] in
+                guard let self = self else { return }
+
+                let email = self.signInView.idTextField.currentText()
+                let password = self.signInView.passwordTextField.currentText()
+
+                self.postSignIn(email: email, password: password)
+            }
+            .disposed(by: disposeBag)
+
         signInView.signUpTapped
             .bind { [weak self] in
                 self?.presentSignUp()
@@ -49,13 +60,21 @@ public class SignInViewController: BaseViewController {
             .disposed(by: disposeBag)
     }
 
+    private func postSignIn(email: String, password: String) {
+        self.viewModel.postSignIn(email: email,
+                                  password: password)
+    }
+
     private func presentSignUp() {
         onPresentSignUp?()
-//        let signUpViewController = SignUpViewController(signViewModel: viewModel)
-//        self.navigationController?.pushViewController(signUpViewController, animated: true)
     }
 
     private func bindTransition() {
+        viewModel.onSignInSuccess = { [weak self] in
+            DispatchQueue.main.async {
+                self?.onLoginSuccess?()
+            }
+        }
     }
 
     public override func setupViewProperty() {
diff --git a/Projects/Login/Sources/ViewModel/SignViewModel.swift b/Projects/Login/Sources/ViewModel/SignViewModel.swift
index 4c8cf55..35a4f59 100644
--- a/Projects/Login/Sources/ViewModel/SignViewModel.swift
+++ b/Projects/Login/Sources/ViewModel/SignViewModel.swift
@@ -10,6 +10,7 @@ import RxSwift
 import RxRelay
 
 protocol SignViewModelProtocol {
+    func postSignIn(email: String, password: String)
     func postEmail(email: String)
     func postConfirm(email: String, code: String)
     func postSignUp(username: String, email: String, password: String)
@@ -18,15 +19,40 @@ protocol SignViewModelProtocol {
 public class SignViewModel: SignViewModelProtocol {
     private let disposeBag = DisposeBag()
     private let signUseCase: SignUseCase
+    private let tokenRepository: TokenRepository
     public weak var signInViewCoordinator: SignInCoordinator?
     public weak var signUpViewCoordinator: SignUpCoordinator?
     public var onEmailSuccess: (() -> Void)?
     public var onConfirmSuccess: (() -> Void)?
     public var onConfirmFailure: (() -> Void)?
+    public var onSignInSuccess: (() -> Void)?
     public let emailVerified = BehaviorRelay<Bool>(value: false)
 
-    public init(signUseCase: SignUseCase) {
+    public init(signUseCase: SignUseCase, tokenRepository: TokenRepository) {
         self.signUseCase = signUseCase
+        self.tokenRepository = tokenRepository
+    }
+
+    func postSignIn(email: String, password: String) {
+        signUseCase.postSignIn(email: email, password: password)
+            .subscribe(onSuccess: { [weak self] response in
+                guard let self = self else { return }
+                print("로그인 성공: \(response)")
+                
+                if let accessToken = response.accessToken {
+                    self.tokenRepository.saveAccessToken(token: accessToken)
+                    print("🔑 토큰 저장 완료: \(accessToken)")
+                }
+                if let refreshToken = response.refreshToken {
+                    self.tokenRepository.saveRefreshToken(token: refreshToken)
+                    print("🔄 리프레시 토큰 저장 완료: \(refreshToken)")
+                }
+
+                self.onSignInSuccess?()
+            }, onFailure: { error in
+                print("로그인 실패: \(error)")
+            })
+            .disposed(by: disposeBag)
     }
 
     func postEmail(email: String) {