diff --git a/app/src/main/java/com/umc/phrase/domain/model/User.kt b/app/src/main/java/com/umc/phrase/domain/model/User.kt
index fa16db4..a5b49ee 100644
--- a/app/src/main/java/com/umc/phrase/domain/model/User.kt
+++ b/app/src/main/java/com/umc/phrase/domain/model/User.kt
@@ -1,5 +1,15 @@
 package com.umc.phrase.domain.model
 
 data class User (
-    val name: String,
+    val id: Long,
+    val nickname: String,
+    val accountId: String,
+    val profileImgUrl: String?
+)
+
+data class UserDetail(
+    val user: User,
+    val followers: Long,
+    val followings: Long,
+    val comment: String?
 )
\ No newline at end of file
diff --git a/app/src/main/java/com/umc/phrase/domain/repository/UserRepository.kt b/app/src/main/java/com/umc/phrase/domain/repository/UserRepository.kt
index 328e8a7..decf7ad 100644
--- a/app/src/main/java/com/umc/phrase/domain/repository/UserRepository.kt
+++ b/app/src/main/java/com/umc/phrase/domain/repository/UserRepository.kt
@@ -1,4 +1,12 @@
 package com.umc.phrase.domain.repository
 
+import com.umc.phrase.domain.DataResource
+import com.umc.phrase.domain.model.User
+import kotlinx.coroutines.flow.Flow
+
 interface UserRepository {
+    fun createUser(user: User): Flow<DataResource<Unit>>
+    fun deleteUser(id: Long): Flow<DataResource<Unit>>
+    fun getUser(id: Long) : Flow<DataResource<User>>
+    fun updateUser(user: User): Flow<DataResource<Unit>>
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/umc/phrase/domain/usecase/user/CreateUserUseCase.kt b/app/src/main/java/com/umc/phrase/domain/usecase/user/CreateUserUseCase.kt
new file mode 100644
index 0000000..e8075e8
--- /dev/null
+++ b/app/src/main/java/com/umc/phrase/domain/usecase/user/CreateUserUseCase.kt
@@ -0,0 +1,13 @@
+package com.umc.phrase.domain.usecase.user
+
+import com.umc.phrase.domain.DataResource
+import com.umc.phrase.domain.model.User
+import com.umc.phrase.domain.repository.UserRepository
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+
+class CreateUserUseCase @Inject constructor(
+    private val userRepository: UserRepository
+){
+    operator fun invoke(user: User): Flow<DataResource<Unit>> = userRepository.createUser(user)
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/umc/phrase/domain/usecase/user/DeleteUserUseCase.kt b/app/src/main/java/com/umc/phrase/domain/usecase/user/DeleteUserUseCase.kt
new file mode 100644
index 0000000..578f8a2
--- /dev/null
+++ b/app/src/main/java/com/umc/phrase/domain/usecase/user/DeleteUserUseCase.kt
@@ -0,0 +1,12 @@
+package com.umc.phrase.domain.usecase.user
+
+import com.umc.phrase.domain.DataResource
+import com.umc.phrase.domain.repository.UserRepository
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+
+class DeleteUserUseCase @Inject constructor(
+    private val userRepository: UserRepository
+){
+    operator fun invoke(id: Long): Flow<DataResource<Unit>> = userRepository.deleteUser(id)
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/umc/phrase/domain/usecase/user/GetUserUseCase.kt b/app/src/main/java/com/umc/phrase/domain/usecase/user/GetUserUseCase.kt
index 91c55c3..9f8d014 100644
--- a/app/src/main/java/com/umc/phrase/domain/usecase/user/GetUserUseCase.kt
+++ b/app/src/main/java/com/umc/phrase/domain/usecase/user/GetUserUseCase.kt
@@ -1,4 +1,13 @@
 package com.umc.phrase.domain.usecase.user
 
-class GetUserUseCase {
+import com.umc.phrase.domain.DataResource
+import com.umc.phrase.domain.model.User
+import com.umc.phrase.domain.repository.UserRepository
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+
+class GetUserUseCase @Inject constructor(
+    private val userRepository: UserRepository
+){
+    operator fun invoke(id: Long): Flow<DataResource<User>> = userRepository.getUser(id)
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/umc/phrase/domain/usecase/user/UpdateUserUseCase.kt b/app/src/main/java/com/umc/phrase/domain/usecase/user/UpdateUserUseCase.kt
new file mode 100644
index 0000000..254072a
--- /dev/null
+++ b/app/src/main/java/com/umc/phrase/domain/usecase/user/UpdateUserUseCase.kt
@@ -0,0 +1,13 @@
+package com.umc.phrase.domain.usecase.user
+
+import com.umc.phrase.domain.DataResource
+import com.umc.phrase.domain.model.User
+import com.umc.phrase.domain.repository.UserRepository
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Inject
+
+class UpdateUserUseCase @Inject constructor(
+    private val userRepository: UserRepository
+){
+    operator fun invoke(user: User): Flow<DataResource<Unit>> = userRepository.updateUser(user)
+}
\ No newline at end of file