diff --git a/backend/src/test/java/net/pengcook/authentication/annotation/WithLoginUser.java b/backend/src/test/java/net/pengcook/authentication/annotation/WithLoginUser.java
new file mode 100644
index 00000000..164a4958
--- /dev/null
+++ b/backend/src/test/java/net/pengcook/authentication/annotation/WithLoginUser.java
@@ -0,0 +1,23 @@
+package net.pengcook.authentication.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface WithLoginUser {
+
+    String email() default "tester@pengcook.net";
+
+    String username() default "tester";
+
+    String nickname() default "테스트 유저";
+
+    String image() default "tester.jpg";
+
+    String birth() default "2000-01-01";
+
+    String region() default "KOREA";
+}
diff --git a/backend/src/test/java/net/pengcook/authentication/annotation/WithLoginUserTest.java b/backend/src/test/java/net/pengcook/authentication/annotation/WithLoginUserTest.java
new file mode 100644
index 00000000..3bf01cbb
--- /dev/null
+++ b/backend/src/test/java/net/pengcook/authentication/annotation/WithLoginUserTest.java
@@ -0,0 +1,14 @@
+package net.pengcook.authentication.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import net.pengcook.authentication.extension.LoginExtension;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@ExtendWith(LoginExtension.class)
+public @interface WithLoginUserTest {
+}
diff --git a/backend/src/test/java/net/pengcook/authentication/extension/LoginExtension.java b/backend/src/test/java/net/pengcook/authentication/extension/LoginExtension.java
new file mode 100644
index 00000000..4f62f63d
--- /dev/null
+++ b/backend/src/test/java/net/pengcook/authentication/extension/LoginExtension.java
@@ -0,0 +1,57 @@
+package net.pengcook.authentication.extension;
+
+import io.restassured.RestAssured;
+import java.time.LocalDate;
+import net.pengcook.authentication.annotation.WithLoginUser;
+import net.pengcook.authentication.dto.TokenPayload;
+import net.pengcook.authentication.util.JwtTokenManager;
+import net.pengcook.user.domain.User;
+import net.pengcook.user.repository.UserRepository;
+import org.junit.jupiter.api.extension.AfterTestExecutionCallback;
+import org.junit.jupiter.api.extension.BeforeEachCallback;
+import org.junit.jupiter.api.extension.ExtensionContext;
+import org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+
+public class LoginExtension implements BeforeEachCallback, AfterTestExecutionCallback {
+
+    @Override
+    public void beforeEach(ExtensionContext context) {
+
+        WithLoginUser annotation = context.getRequiredTestMethod().getAnnotation(WithLoginUser.class);
+        if (annotation != null) {
+            ApplicationContext applicationContext = SpringExtension.getApplicationContext(context);
+            JwtTokenManager jwtTokenManager = applicationContext.getBean(JwtTokenManager.class);
+            UserRepository userRepository = applicationContext.getBean(UserRepository.class);
+
+            User user = findOrSaveUser(annotation, userRepository);
+            String accessToken = jwtTokenManager.createToken(new TokenPayload(user.getId(), user.getEmail()));
+
+            RestAssured.port = ((ServletWebServerApplicationContext) applicationContext).getWebServer().getPort();
+            RestAssured.requestSpecification = RestAssured.given().header("Authorization", "Bearer " + accessToken);
+        }
+    }
+
+    @Override
+    public void afterTestExecution(ExtensionContext extensionContext) {
+        RestAssured.reset();
+    }
+
+    private User findOrSaveUser(WithLoginUser annotation, UserRepository userRepository) {
+        return userRepository.findByEmail(annotation.email())
+                .orElseGet(() -> saveUser(annotation, userRepository));
+    }
+
+    private User saveUser(WithLoginUser annotation, UserRepository userRepository) {
+        User user = new User(
+                annotation.email(),
+                annotation.username(),
+                annotation.nickname(),
+                annotation.image(),
+                LocalDate.parse(annotation.birth()),
+                annotation.region()
+        );
+        return userRepository.save(user);
+    }
+}