diff --git a/.github/workflows/ci-java.yml b/.github/workflows/ci-java.yml
new file mode 100644
index 00000000..1a4faaa2
--- /dev/null
+++ b/.github/workflows/ci-java.yml
@@ -0,0 +1,47 @@
+name: CI (Java)
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "apps/user-service/**"
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+    branches:
+      - main
+      - develop
+      - release/**
+    paths:
+      - "apps/user-service/**"
+
+permissions:
+  contents: read
+  packages: write
+  security-events: write
+  checks: write
+  pull-requests: write
+
+jobs:
+  spotless-check:
+    name: Lint Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+          cache: 'gradle'
+
+      - name: Grant execute permission for Gradle wrapper
+        run: chmod +x ./gradlew
+        working-directory: apps/user-service
+
+      - name: Run Spotless Check
+        run: ./gradlew spotlessCheck
+        working-directory: apps/user-service
\ No newline at end of file
diff --git a/apps/user-service/build.gradle b/apps/user-service/build.gradle
index f373d429..17c949f3 100644
--- a/apps/user-service/build.gradle
+++ b/apps/user-service/build.gradle
@@ -2,6 +2,7 @@ plugins {
 	id 'java'
 	id 'org.springframework.boot' version '3.5.4'
 	id 'io.spring.dependency-management' version '1.1.7'
+	id 'com.diffplug.spotless' version '7.2.1'
 }
 
 group = 'com.gltkorea'
@@ -43,3 +44,21 @@ dependencies {
 tasks.named('test') {
 	useJUnitPlatform()
 }
+
+spotless {
+	java {
+		googleJavaFormat('1.17.0')
+		importOrder('java', 'javax', 'org', 'com', '', 'com.movement')
+		endWithNewline()
+		removeUnusedImports()
+		encoding('UTF-8')
+
+		targetExclude("**/generated/**", "**/Q*.java")
+	}
+	format 'misc', {
+		target '**/*.gradle', '**/*.md', '**/.gitignore'
+		trimTrailingWhitespace()
+		indentWithTabs()
+		endWithNewline()
+	}
+}
diff --git a/apps/user-service/src/main/java/com/gltkorea/icebang/UserServiceApplication.java b/apps/user-service/src/main/java/com/gltkorea/icebang/UserServiceApplication.java
index 110b7d92..b5fcbef4 100644
--- a/apps/user-service/src/main/java/com/gltkorea/icebang/UserServiceApplication.java
+++ b/apps/user-service/src/main/java/com/gltkorea/icebang/UserServiceApplication.java
@@ -6,8 +6,7 @@
 @SpringBootApplication
 public class UserServiceApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(UserServiceApplication.class, args);
-	}
-
+  public static void main(String[] args) {
+    SpringApplication.run(UserServiceApplication.class, args);
+  }
 }
diff --git a/apps/user-service/src/main/java/com/gltkorea/icebang/config/SecurityConfig.java b/apps/user-service/src/main/java/com/gltkorea/icebang/config/SecurityConfig.java
index b0c092c0..4d7ac371 100644
--- a/apps/user-service/src/main/java/com/gltkorea/icebang/config/SecurityConfig.java
+++ b/apps/user-service/src/main/java/com/gltkorea/icebang/config/SecurityConfig.java
@@ -3,5 +3,4 @@
 import org.springframework.context.annotation.Configuration;
 
 @Configuration
-public class SecurityConfig {
-}
+public class SecurityConfig {}
diff --git a/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/model/UserAccountPrincipal.java b/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/model/UserAccountPrincipal.java
index e394eca7..abca6682 100644
--- a/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/model/UserAccountPrincipal.java
+++ b/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/model/UserAccountPrincipal.java
@@ -1,26 +1,27 @@
 package com.gltkorea.icebang.domain.user.model;
 
-import lombok.Builder;
+import java.util.Collection;
+import java.util.List;
+
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.userdetails.UserDetails;
 
-import java.util.Collection;
-import java.util.List;
+import lombok.Builder;
 
 @Builder
 public class UserAccountPrincipal implements UserDetails {
-    @Override
-    public Collection<? extends GrantedAuthority> getAuthorities() {
-        return List.of();
-    }
+  @Override
+  public Collection<? extends GrantedAuthority> getAuthorities() {
+    return List.of();
+  }
 
-    @Override
-    public String getPassword() {
-        return "";
-    }
+  @Override
+  public String getPassword() {
+    return "";
+  }
 
-    @Override
-    public String getUsername() {
-        return "";
-    }
+  @Override
+  public String getUsername() {
+    return "";
+  }
 }
diff --git a/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthService.java b/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthService.java
index f8c22c3d..dc8396ee 100644
--- a/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthService.java
+++ b/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthService.java
@@ -2,5 +2,4 @@
 
 import org.springframework.security.core.userdetails.UserDetailsService;
 
-public interface UserAuthService extends UserDetailsService {
-}
+public interface UserAuthService extends UserDetailsService {}
diff --git a/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthServiceImpl.java b/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthServiceImpl.java
index cf7cb819..272e289e 100644
--- a/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthServiceImpl.java
+++ b/apps/user-service/src/main/java/com/gltkorea/icebang/domain/user/service/UserAuthServiceImpl.java
@@ -1,12 +1,13 @@
 package com.gltkorea.icebang.domain.user.service;
 
-import com.gltkorea.icebang.domain.user.model.UserAccountPrincipal;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
 
+import com.gltkorea.icebang.domain.user.model.UserAccountPrincipal;
+
 public class UserAuthServiceImpl implements UserAuthService {
-    @Override
-    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
-        return UserAccountPrincipal.builder().build();
-    }
+  @Override
+  public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+    return UserAccountPrincipal.builder().build();
+  }
 }
diff --git a/apps/user-service/src/test/java/com/gltkorea/icebang/TestUserServiceApplication.java b/apps/user-service/src/test/java/com/gltkorea/icebang/TestUserServiceApplication.java
index 624e8df7..f53fa0a9 100644
--- a/apps/user-service/src/test/java/com/gltkorea/icebang/TestUserServiceApplication.java
+++ b/apps/user-service/src/test/java/com/gltkorea/icebang/TestUserServiceApplication.java
@@ -4,8 +4,9 @@
 
 public class TestUserServiceApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.from(UserServiceApplication::main).with(TestcontainersConfiguration.class).run(args);
-	}
-
+  public static void main(String[] args) {
+    SpringApplication.from(UserServiceApplication::main)
+        .with(TestcontainersConfiguration.class)
+        .run(args);
+  }
 }
diff --git a/apps/user-service/src/test/java/com/gltkorea/icebang/TestcontainersConfiguration.java b/apps/user-service/src/test/java/com/gltkorea/icebang/TestcontainersConfiguration.java
index a302d914..bbe8ed02 100644
--- a/apps/user-service/src/test/java/com/gltkorea/icebang/TestcontainersConfiguration.java
+++ b/apps/user-service/src/test/java/com/gltkorea/icebang/TestcontainersConfiguration.java
@@ -3,6 +3,4 @@
 import org.springframework.boot.test.context.TestConfiguration;
 
 @TestConfiguration(proxyBeanMethods = false)
-class TestcontainersConfiguration {
-
-}
+class TestcontainersConfiguration {}
diff --git a/apps/user-service/src/test/java/com/gltkorea/icebang/UserServiceApplicationTests.java b/apps/user-service/src/test/java/com/gltkorea/icebang/UserServiceApplicationTests.java
index c83e584d..26cfc86b 100644
--- a/apps/user-service/src/test/java/com/gltkorea/icebang/UserServiceApplicationTests.java
+++ b/apps/user-service/src/test/java/com/gltkorea/icebang/UserServiceApplicationTests.java
@@ -8,8 +8,6 @@
 @SpringBootTest
 class UserServiceApplicationTests {
 
-	@Test
-	void contextLoads() {
-	}
-
+  @Test
+  void contextLoads() {}
 }