diff --git a/src/main/kotlin/com/ray650128/service/UserService.kt b/src/main/kotlin/com/ray650128/service/UserService.kt
new file mode 100644
index 0000000..6273843
--- /dev/null
+++ b/src/main/kotlin/com/ray650128/service/UserService.kt
@@ -0,0 +1,17 @@
+package com.ray650128.service
+
+import com.ray650128.model.User
+import com.ray650128.repository.UserRepository
+
+class UserService {
+    val userRepository = UserRepository()
+
+    suspend fun addUser(data: User): Boolean {
+        return if (userRepository.get(data.account) == null) {
+            userRepository.add(data)
+            true
+        } else {
+            false
+        }
+    }
+}
\ No newline at end of file