diff --git a/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepository.kt b/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepository.kt
index fea523eb..21a559c5 100644
--- a/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepository.kt
+++ b/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepository.kt
@@ -5,7 +5,7 @@ import com.android.mediproject.core.model.sign.LoginParameter
 import com.android.mediproject.core.model.sign.SignUpParameter
 
 interface SignRepository {
-    suspend fun login(loginParameter: LoginParameter): Result<Boolean>
+    suspend fun login(loginParameter: LoginParameter): SignInState
     suspend fun signUp(signUpParameter: SignUpParameter): Result<Boolean>
 
     suspend fun signOut()
diff --git a/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepositoryImpl.kt b/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepositoryImpl.kt
index 2ccd996b..83d79206 100644
--- a/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepositoryImpl.kt
+++ b/core/data/src/main/java/com/android/mediproject/core/data/sign/SignRepositoryImpl.kt
@@ -1,6 +1,7 @@
 package com.android.mediproject.core.data.sign
 
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserSession
+import com.amazonaws.services.cognitoidentityprovider.model.UserNotConfirmedException
 import com.android.mediproject.core.data.user.UserInfoRepository
 import com.android.mediproject.core.datastore.AppDataStore
 import com.android.mediproject.core.model.sign.LoginParameter
@@ -17,8 +18,8 @@ internal class SignRepositoryImpl(
     private var _session: CognitoUserSession? = null
     override val session: CognitoUserSession? get() = _session
 
-    override suspend fun login(loginParameter: LoginParameter): Result<Boolean> {
-        signDataSource.logIn(loginParameter).onSuccess {
+    override suspend fun login(loginParameter: LoginParameter) = signDataSource.logIn(loginParameter).fold(
+        onSuccess = {
             _session = it.userSession
             appDataStore.run {
                 saveSkipIntro(true)
@@ -35,19 +36,23 @@ internal class SignRepositoryImpl(
                     myAccountId = 0L,
                 )
             }
-        }.onFailure {
-            _session = null
-        }
+            SignInState.Success
+        },
+        onFailure = {
+            if (it is UserNotConfirmedException) {
+                SignInState.NotVerified
+            } else {
+                SignInState.Failed(it)
+            }
+        },
+    )
 
-        return Result.success(true)
-    }
 
     override suspend fun signUp(signUpParameter: SignUpParameter): Result<Boolean> {
         val result = signDataSource.signUp(signUpParameter)
         if (result.isSuccess) {
             appDataStore.saveSkipIntro(true)
         }
-
         return Result.success(true)
     }
 
@@ -56,3 +61,10 @@ internal class SignRepositoryImpl(
         signDataSource.signOut()
     }
 }
+
+
+sealed interface SignInState {
+    data object Success : SignInState
+    data object NotVerified : SignInState
+    data class Failed(val exception: Throwable) : SignInState
+}
diff --git a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/AWSAccountManager.kt b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/AWSAccountManager.kt
index 8590fed5..5b651cf6 100644
--- a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/AWSAccountManager.kt
+++ b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/AWSAccountManager.kt
@@ -4,6 +4,4 @@ import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool
 
 open class AWSAccountManager(
     protected val userPool: CognitoUserPool,
-) {
-
-}
+)
diff --git a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSource.kt b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSource.kt
index a5c2824c..717c2efb 100644
--- a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSource.kt
+++ b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSource.kt
@@ -4,7 +4,8 @@ import com.android.mediproject.core.model.sign.LoginParameter
 import com.android.mediproject.core.model.sign.SignUpParameter
 
 interface SignDataSource {
-    suspend fun logIn(loginParameter: LoginParameter): Result<SignInOutAWS.SignInResponse>
-    suspend fun signUp(signUpParameter: SignUpParameter): Result<SignUpAWS.SignUpResponse>
+    suspend fun logIn(loginParameter: LoginParameter): Result<SignInResponse>
+    suspend fun signUp(signUpParameter: SignUpParameter): Result<SignUpResponse>
+    suspend fun vertifyEmail(email: String, code: String): Result<Boolean>
     suspend fun signOut()
 }
diff --git a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSourceImpl.kt b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSourceImpl.kt
index fcc4d4a0..01e8a14a 100644
--- a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSourceImpl.kt
+++ b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignDataSourceImpl.kt
@@ -9,17 +9,18 @@ private const val USER_NAME = "user_name"
 class SignDataSourceImpl(
     private val signInOutAWS: SignInOutAWS,
     private val signUpAWS: SignUpAWS,
+    private val verifyEmailAWS: VerifyEmailAWS,
 ) : SignDataSource {
 
-    override suspend fun logIn(loginParameter: LoginParameter): Result<SignInOutAWS.SignInResponse> = signInOutAWS.signIn(
-        SignInOutAWS.SignInRequest(
+    override suspend fun logIn(loginParameter: LoginParameter) = signInOutAWS.signIn(
+        SignInRequest(
             loginParameter.email,
             loginParameter.password,
         ),
     )
 
-    override suspend fun signUp(signUpParameter: SignUpParameter): Result<SignUpAWS.SignUpResponse> = signUpAWS.signUp(
-        SignUpAWS.SignUpRequest(
+    override suspend fun signUp(signUpParameter: SignUpParameter): Result<SignUpResponse> = signUpAWS.signUp(
+        SignUpRequest(
             signUpParameter.email,
             signUpParameter.password,
             CognitoUserAttributes().apply {
@@ -28,6 +29,8 @@ class SignDataSourceImpl(
         ),
     )
 
+    override suspend fun vertifyEmail(email: String, code: String): Result<Boolean> = verifyEmailAWS.verifyEmail(email, code)
+
     override suspend fun signOut() {
         signInOutAWS.signOut()
     }
diff --git a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignInOutAWS.kt b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignInOutAWS.kt
index 9e196099..1b4b4b7d 100644
--- a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignInOutAWS.kt
+++ b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignInOutAWS.kt
@@ -8,25 +8,21 @@ import com.amazonaws.mobileconnectors.cognitoidentityprovider.continuations.Auth
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.continuations.ChallengeContinuation
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.continuations.MultiFactorAuthenticationContinuation
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.AuthenticationHandler
-import com.amazonaws.services.cognitoidentityprovider.model.UserNotConfirmedException
-import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlin.coroutines.resume
+import kotlin.coroutines.resumeWithException
+import kotlin.coroutines.suspendCoroutine
 
 internal class SignInOutAWSImpl(userPool: CognitoUserPool) : AWSAccountManager(userPool), SignInOutAWS {
 
-    override suspend fun signIn(request: SignInRequest) = suspendCancellableCoroutine { continuation ->
+    override suspend fun signIn(request: SignInRequest) = suspendCoroutine { continuation ->
         userPool.getUser(request.email).getSession(
             object : AuthenticationHandler {
                 override fun onSuccess(userSession: CognitoUserSession, newDevice: CognitoDevice?) {
-                    continuation.resume(SignInState.Success(userSession, newDevice))
+                    continuation.resume(Result.success(SignInResponse(userSession, newDevice)))
                 }
 
                 override fun onFailure(exception: Exception) {
-                    if (exception is UserNotConfirmedException) {
-                        continuation.resume(SignInState.NotVerified)
-                    } else {
-                        continuation.resume(SignInState.Failed(exception))
-                    }
+                    continuation.resumeWithException(exception)
                     // UserNotConfirmedException : 이메일 인증을 하지 않았을 때 발생
                 }
 
@@ -54,7 +50,7 @@ internal class SignInOutAWSImpl(userPool: CognitoUserPool) : AWSAccountManager(u
 
 
 interface SignInOutAWS {
-    suspend fun signIn(request: SignInRequest): SignInState
+    suspend fun signIn(request: SignInRequest): Result<SignInResponse>
 
     suspend fun signOut()
 }
@@ -64,13 +60,7 @@ class SignInRequest(
     val password: ByteArray,
 )
 
-
-sealed interface SignInState {
-    class Success(
-        val userSession: CognitoUserSession,
-        val device: CognitoDevice? = null,
-    ) : SignInState
-
-    data class Failed(val exception: Exception) : SignInState
-    data object NotVerified : SignInState
-}
+class SignInResponse(
+    val userSession: CognitoUserSession,
+    val newDevice: CognitoDevice?,
+)
diff --git a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignUpAWS.kt b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignUpAWS.kt
index 8a9bb873..dd85d8a1 100644
--- a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignUpAWS.kt
+++ b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/SignUpAWS.kt
@@ -8,20 +8,20 @@ import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.GenericHa
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.SignUpHandler
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.VerificationHandler
 import com.amazonaws.services.cognitoidentityprovider.model.SignUpResult
-import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
+import kotlin.coroutines.suspendCoroutine
 
 internal class SignUpAWSImpl(
-    override val userPool: CognitoUserPool,
+    userPool: CognitoUserPool,
 ) : AWSAccountManager(userPool), SignUpAWS {
 
-    override suspend fun signUp(request: SignUpAWS.SignUpRequest) = suspendCancellableCoroutine { continuation ->
+    override suspend fun signUp(request: SignUpRequest) = suspendCoroutine { continuation ->
         userPool.signUp(
             request.email, request.passwordString, request.cognitoUserAttributes, null,
             object : SignUpHandler {
                 override fun onSuccess(cognitoUser: CognitoUser, signUpResult: SignUpResult) {
-                    val response = SignUpAWS.SignUpResponse(cognitoUser, signUpResult)
+                    val response = SignUpResponse(cognitoUser, signUpResult)
                     continuation.resume(Result.success(response))
                 }
 
@@ -32,7 +32,7 @@ internal class SignUpAWSImpl(
         )
     }
 
-    override suspend fun confirmSignUp(cognitoUser: CognitoUser, confirmationCode: String) = suspendCancellableCoroutine { continuation ->
+    override suspend fun confirmSignUp(cognitoUser: CognitoUser, confirmationCode: String) = suspendCoroutine { continuation ->
         cognitoUser.confirmSignUpInBackground(
             confirmationCode, false,
             object : GenericHandler {
@@ -47,14 +47,14 @@ internal class SignUpAWSImpl(
         )
     }
 
-    override suspend fun resendConfirmationCode(cognitoUser: CognitoUser): Result<SignUpAWS.ConfirmationCodeDeliveryDetails> =
-        suspendCancellableCoroutine { continuation ->
+    override suspend fun resendConfirmationCode(cognitoUser: CognitoUser): Result<ConfirmationCodeDeliveryDetails> =
+        suspendCoroutine { continuation ->
             cognitoUser.resendConfirmationCode(
                 object : VerificationHandler {
                     override fun onSuccess(verificationCodeDeliveryMedium: CognitoUserCodeDeliveryDetails) {
                         continuation.resume(
                             Result.success(
-                                SignUpAWS.ConfirmationCodeDeliveryDetails(
+                                ConfirmationCodeDeliveryDetails(
                                     destination = verificationCodeDeliveryMedium.destination,
                                     deliveryMedium = verificationCodeDeliveryMedium.deliveryMedium,
                                     attributeName = verificationCodeDeliveryMedium.attributeName,
@@ -79,23 +79,23 @@ interface SignUpAWS {
     suspend fun confirmSignUp(cognitoUser: CognitoUser, confirmationCode: String): Result<Unit>
 
     suspend fun resendConfirmationCode(cognitoUser: CognitoUser): Result<ConfirmationCodeDeliveryDetails>
+}
 
-    class SignUpRequest(
-        val email: String,
-        private val password: ByteArray,
-        val cognitoUserAttributes: CognitoUserAttributes,
-    ) {
-        val passwordString: String get() = password.decodeToString()
-    }
+class SignUpRequest(
+    val email: String,
+    private val password: ByteArray,
+    val cognitoUserAttributes: CognitoUserAttributes,
+) {
+    val passwordString: String get() = password.decodeToString()
+}
 
-    data class SignUpResponse(
-        val cognitoUser: CognitoUser,
-        val signUpResult: SignUpResult,
-    )
+data class SignUpResponse(
+    val cognitoUser: CognitoUser,
+    val signUpResult: SignUpResult,
+)
 
-    data class ConfirmationCodeDeliveryDetails(
-        val destination: String,
-        val deliveryMedium: String,
-        val attributeName: String,
-    )
-}
+data class ConfirmationCodeDeliveryDetails(
+    val destination: String,
+    val deliveryMedium: String,
+    val attributeName: String,
+)
diff --git a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/VerifyEmail.kt b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/VerifyEmailAWS.kt
similarity index 78%
rename from core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/VerifyEmail.kt
rename to core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/VerifyEmailAWS.kt
index a9e453f8..607dca03 100644
--- a/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/VerifyEmail.kt
+++ b/core/network/src/main/java/com/android/mediproject/core/network/datasource/sign/VerifyEmailAWS.kt
@@ -3,6 +3,7 @@ package com.android.mediproject.core.network.datasource.sign
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool
 import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.GenericHandler
 import kotlin.coroutines.resume
+import kotlin.coroutines.resumeWithException
 import kotlin.coroutines.suspendCoroutine
 
 class VerifyEmailImpl(userPool: CognitoUserPool) : AWSAccountManager(userPool), VerifyEmailAWS {
@@ -11,11 +12,11 @@ class VerifyEmailImpl(userPool: CognitoUserPool) : AWSAccountManager(userPool),
             code, true,
             object : GenericHandler {
                 override fun onSuccess() {
-                    it.resume(true)
+                    it.resume(Result.success(true))
                 }
 
                 override fun onFailure(exception: Exception) {
-                    it.resume(false)
+                    it.resumeWithException(exception)
                 }
             },
         )
@@ -23,5 +24,5 @@ class VerifyEmailImpl(userPool: CognitoUserPool) : AWSAccountManager(userPool),
 }
 
 interface VerifyEmailAWS {
-    suspend fun verifyEmail(email: String, code: String): Boolean
+    suspend fun verifyEmail(email: String, code: String): Result<Boolean>
 }