diff --git a/src/main/java/umc/spring/post/repository/UserRepository.java b/src/main/java/umc/spring/post/repository/UserRepository.java
new file mode 100644
index 0000000000000000000000000000000000000000..870af44442d65b4815c19c0c76d588da609ffc58
--- /dev/null
+++ b/src/main/java/umc/spring/post/repository/UserRepository.java
@@ -0,0 +1,10 @@
+package umc.spring.post.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import umc.spring.post.data.entity.User;
+
+import java.util.Optional;
+
+public interface UserRepository extends JpaRepository<User, Long> {
+    Optional<User> findByUserId(String userId);
+}