diff --git a/src/main/kotlin/org/meogo/domain/user/presentation/dto/request/UserCheckRequest.kt b/src/main/kotlin/org/meogo/domain/user/presentation/dto/request/UserCheckRequest.kt
new file mode 100644
index 0000000..7cc0ba6
--- /dev/null
+++ b/src/main/kotlin/org/meogo/domain/user/presentation/dto/request/UserCheckRequest.kt
@@ -0,0 +1,5 @@
+package org.meogo.domain.user.presentation.dto.request
+
+data class UserCheckRequest(
+    val accountId: String
+)
diff --git a/src/main/kotlin/org/meogo/domain/user/service/CheckAccountIdService.kt b/src/main/kotlin/org/meogo/domain/user/service/CheckAccountIdService.kt
new file mode 100644
index 0000000..b8afa47
--- /dev/null
+++ b/src/main/kotlin/org/meogo/domain/user/service/CheckAccountIdService.kt
@@ -0,0 +1,14 @@
+package org.meogo.domain.user.service
+
+import org.meogo.domain.user.presentation.dto.request.UserCheckRequest
+import org.meogo.domain.user.repository.UserRepository
+import org.springframework.stereotype.Service
+
+@Service
+class CheckAccountIdService(
+    private val userRepository: UserRepository
+) {
+    fun execute(request: UserCheckRequest): Boolean {
+        return userRepository.existsByAccountId(request.accountId)
+    }
+}