diff --git a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt
index e18f3cce..2178a358 100644
--- a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt
+++ b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt
@@ -7,4 +7,6 @@ interface DefaultDataSource {
     fun clearUserData() : Flow<Unit>
     fun setUserProfile(data: UserProfile) : Flow<Unit>
     fun getUserProfile() : Flow<UserProfile?>
+    fun setMemberId(data: Long) : Flow<Unit>
+    fun getMemberId() : Flow<Long?>
 }
\ No newline at end of file
diff --git a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt
index fe8ce237..0157e4d6 100644
--- a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt
+++ b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt
@@ -18,6 +18,7 @@ class DefaultDataSourceImpl @Inject constructor(
     object PreferencesKey {
         val USER_NICKNAME = stringPreferencesKey("USER_NICKNAME")
         val USER_CHARACTER = stringPreferencesKey("USER_CHARACTER")
+        val MEMBER_ID = stringPreferencesKey("MEMBER_ID")
     }
 
     override fun clearUserData(): Flow<Unit> = flow {
@@ -44,4 +45,15 @@ class DefaultDataSourceImpl @Inject constructor(
             null
         }
     }
+
+    override fun setMemberId(data: Long): Flow<Unit> = flow {
+        dataStore.edit { preferences ->
+            preferences[PreferencesKey.MEMBER_ID] = data.toString()
+        }
+        emit(Unit)
+    }
+
+    override fun getMemberId(): Flow<Long?> = dataStore.data.map { preferences ->
+        preferences[PreferencesKey.MEMBER_ID]?.toLong()
+    }
 }
\ No newline at end of file
diff --git a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt
index c1e39216..f4705352 100644
--- a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt
+++ b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt
@@ -22,6 +22,7 @@ class LoginUseCase @Inject constructor(
                 response.data.also {
                     authDataSource.setAccessToken(it.accessToken).first()
                     authDataSource.setRefreshToken(it.refreshToken).first()
+                    defaultDataSource.setMemberId(it.memberId).first()
                     (it.nickname to it.characterType).let { (nickname, character) ->
                         if (nickname != null && character != null) {
                             defaultDataSource.setUserProfile(
diff --git a/core/model/src/main/java/com/luckyoct/core/model/response/GoogleLogin.kt b/core/model/src/main/java/com/luckyoct/core/model/response/GoogleLogin.kt
index a84d6628..a8ceb6de 100644
--- a/core/model/src/main/java/com/luckyoct/core/model/response/GoogleLogin.kt
+++ b/core/model/src/main/java/com/luckyoct/core/model/response/GoogleLogin.kt
@@ -9,5 +9,6 @@ data class GoogleLogin(
     val refreshToken: String,
     val nickname: String?,
     val characterType: CharacterType?,
-    val isProfileSet: Boolean
+    val isProfileSet: Boolean,
+    val memberId: Long
 )
diff --git a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt
index 5298d4c1..08776766 100644
--- a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt
+++ b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt
@@ -110,7 +110,6 @@ class ProfileViewModel @AssistedInject constructor(
 
             when(val response = profileUseCase.saveProfile(nickname, selectedItem.type)) {
                 is NetworkResult.Success -> {
-                    profileUseCase.saveProfile(nickname, selectedItem.type)
                     _isSaveSuccess.emit(true)
                 }
                 is NetworkResult.Exception -> {}