diff --git a/src/test/java/poomasi/global/config/s3/S3PresignedUrlServiceTest.java b/src/test/java/poomasi/global/config/s3/S3PresignedUrlServiceTest.java
index 7bf948ae..2a140992 100644
--- a/src/test/java/poomasi/global/config/s3/S3PresignedUrlServiceTest.java
+++ b/src/test/java/poomasi/global/config/s3/S3PresignedUrlServiceTest.java
@@ -1,56 +1,37 @@
 package poomasi.global.config.s3;
 
-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
 import poomasi.global.config.aws.AwsProperties;
-import poomasi.global.util.EncryptionUtil;
-import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
-import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
-import software.amazon.awssdk.regions.Region;
-import software.amazon.awssdk.services.s3.presigner.S3Presigner;
 
 import java.util.HashMap;
 import java.util.Map;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.when;
 
 @SpringBootTest
 public class S3PresignedUrlServiceTest {
 
+    @MockBean
     private S3PresignedUrlService s3PresignedUrlService;
 
     @Autowired
     private AwsProperties awsProperties;
 
-    @BeforeEach
-    public void setUp() {
-        String accessKey = awsProperties.getAccess();
-        String secretKey = awsProperties.getSecret();
-        String region = awsProperties.getS3().getRegion();
-
-        // 자격 증명 설정
-        AwsBasicCredentials awsCreds = AwsBasicCredentials.create(
-                accessKey,
-                secretKey
-        );
-
-        // S3Presigner 인스턴스 생성
-        S3Presigner presigner = S3Presigner.builder()
-                .credentialsProvider(StaticCredentialsProvider.create(awsCreds))
-                .region(Region.of(region))
-                .build();
-
-        // S3PresignedUrlService 초기화
-        s3PresignedUrlService = new S3PresignedUrlService(presigner, new EncryptionUtil());
-    }
-
     @Test
     public void testCreatePresignedGetUrl() {
         String objectKey = "object_key";
         String bucketName = awsProperties.getS3().getBucket();
 
+        // `createPresignedGetUrl` 메서드 모킹
+        when(s3PresignedUrlService.createPresignedGetUrl(anyString(), anyString()))
+                .thenReturn("https://mocked-get-url.com");
+
         String presignedUrl = s3PresignedUrlService.createPresignedGetUrl(bucketName, objectKey);
 
         assertNotNull(presignedUrl);
@@ -62,12 +43,14 @@ public void testCreatePresignedPutUrl() {
         String keyPrefix = "uploads";
         String bucketName = awsProperties.getS3().getBucket();
 
-        // 메타데이터 생성
         Map<String, String> metadata = new HashMap<>();
         metadata.put("Content-Type", "image/jpg");
         metadata.put("x-amz-meta-title", "Test Image");
 
-        // presigned PUT URL 생성
+        // `createPresignedPutUrl` 메서드 모킹
+        when(s3PresignedUrlService.createPresignedPutUrl(anyString(), anyString(), any(Map.class)))
+                .thenReturn("https://mocked-put-url.com");
+
         String presignedUrl = s3PresignedUrlService.createPresignedPutUrl(bucketName, keyPrefix, metadata);
 
         assertNotNull(presignedUrl);