diff --git a/build.gradle b/build.gradle
index 455da4f..7c6792c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -56,6 +56,10 @@ dependencies {
 
 	// CI/CD health check
 	implementation 'org.springframework.boot:spring-boot-starter-actuator'
+
+	// Multipart file
+	implementation("software.amazon.awssdk:bom:2.21.0")
+	implementation("software.amazon.awssdk:s3:2.21.0")
 }
 
 tasks.named('test') {
diff --git a/src/main/java/com/telepigeon/server/config/AwsConfig.java b/src/main/java/com/telepigeon/server/config/AwsConfig.java
new file mode 100644
index 0000000..073fc21
--- /dev/null
+++ b/src/main/java/com/telepigeon/server/config/AwsConfig.java
@@ -0,0 +1,48 @@
+package com.telepigeon.server.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import software.amazon.awssdk.auth.credentials.SystemPropertyCredentialsProvider;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
+
+@Configuration
+public class AwsConfig {
+
+    private static final String AWS_ACCESS_KEY_ID = "aws.accessKeyId";
+    private static final String AWS_SECRET_ACCESS_KEY = "aws.secretAccessKey";
+
+    private final String accessKey;
+    private final String secretKey;
+    private final String regionString;
+
+    public AwsConfig(@Value("${aws-property.access-key}") final String accessKey,
+                     @Value("${aws-property.secret-key}") final String secretKey,
+                     @Value("${aws-property.aws-region}") final String regionString) {
+        this.accessKey = accessKey;
+        this.secretKey = secretKey;
+        this.regionString = regionString;
+    }
+
+    @Bean
+    public SystemPropertyCredentialsProvider systemPropertyCredentialsProvider() {
+        System.setProperty(AWS_ACCESS_KEY_ID, accessKey);
+        System.setProperty(AWS_SECRET_ACCESS_KEY, secretKey);
+        return SystemPropertyCredentialsProvider.create();
+    }
+
+    @Bean
+    public Region getRegion() {
+        return Region.of(regionString);
+    }
+
+    @Bean
+    public S3Client getS3Client() {
+        return S3Client.builder()
+                .region(getRegion())
+                .credentialsProvider(systemPropertyCredentialsProvider())
+                .build();
+    }
+
+}
diff --git a/src/main/java/com/telepigeon/server/controller/AnswerController.java b/src/main/java/com/telepigeon/server/controller/AnswerController.java
index 3d78925..60cf1bf 100644
--- a/src/main/java/com/telepigeon/server/controller/AnswerController.java
+++ b/src/main/java/com/telepigeon/server/controller/AnswerController.java
@@ -14,6 +14,7 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.io.IOException;
 import java.net.URI;
 import java.time.LocalDate;
 import java.time.YearMonth;
@@ -29,8 +30,8 @@ public ResponseEntity<Void> postAnswer(
             @UserId final Long userId,
             @PathVariable final Long roomId,
             @PathVariable final Long questionId,
-            @RequestBody @Valid final AnswerCreateDto answerCreateDto
-    ) {
+            @ModelAttribute @Valid final AnswerCreateDto answerCreateDto
+    ) throws IOException {
         return ResponseEntity.created(
                 URI.create(
                         "/answers/" + answerService.create(
diff --git a/src/main/java/com/telepigeon/server/domain/Answer.java b/src/main/java/com/telepigeon/server/domain/Answer.java
index 8640276..b4a6103 100644
--- a/src/main/java/com/telepigeon/server/domain/Answer.java
+++ b/src/main/java/com/telepigeon/server/domain/Answer.java
@@ -39,14 +39,15 @@ public class Answer {
     private Profile profile;
 
     public static Answer create(
-            AnswerCreateDto answerCreateDto,
+            String content,
+            String image,
             Double emotion,
             Question question,
             Profile profile
     ){
         return new Answer(
-                answerCreateDto.content(),
-                answerCreateDto.image(),
+                content,
+                image,
                 emotion,
                 question,
                 profile);
diff --git a/src/main/java/com/telepigeon/server/dto/answer/request/AnswerCreateDto.java b/src/main/java/com/telepigeon/server/dto/answer/request/AnswerCreateDto.java
index b8fe346..b098265 100644
--- a/src/main/java/com/telepigeon/server/dto/answer/request/AnswerCreateDto.java
+++ b/src/main/java/com/telepigeon/server/dto/answer/request/AnswerCreateDto.java
@@ -2,11 +2,12 @@
 
 import jakarta.annotation.Nullable;
 import jakarta.validation.constraints.NotBlank;
+import org.springframework.web.multipart.MultipartFile;
 
 public record AnswerCreateDto(
         @NotBlank
         String content,
         @Nullable
-        String image
+        MultipartFile image
 ) {
 }
diff --git a/src/main/java/com/telepigeon/server/service/answer/AnswerService.java b/src/main/java/com/telepigeon/server/service/answer/AnswerService.java
index 91407dc..62df5ef 100644
--- a/src/main/java/com/telepigeon/server/service/answer/AnswerService.java
+++ b/src/main/java/com/telepigeon/server/service/answer/AnswerService.java
@@ -11,8 +11,9 @@
 import com.telepigeon.server.dto.naverCloud.ConfidenceDto;
 import com.telepigeon.server.dto.room.response.RoomStateDto;
 import com.telepigeon.server.dto.type.FcmContent;
+import com.telepigeon.server.service.external.S3Service;
 import com.telepigeon.server.service.fcm.FcmService;
-import com.telepigeon.server.service.naverCloud.NaverCloudService;
+import com.telepigeon.server.service.external.NaverCloudService;
 import com.telepigeon.server.service.user.UserRetriever;
 import com.telepigeon.server.service.hurry.HurryRetriever;
 import com.telepigeon.server.service.profile.ProfileRetriever;
@@ -23,6 +24,7 @@
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.io.IOException;
 import java.time.LocalDate;
 import java.time.YearMonth;
 import java.util.Collections;
@@ -43,6 +45,9 @@ public class AnswerService {
     private final HurryRetriever hurryRetriever;
     private final NaverCloudService naverCloudService;
     private final FcmService fcmService;
+    private final S3Service s3Service;
+
+    private static String ANSWER_S3_UPLOAD_FOLDER = "/answer";
 
     @Transactional
     public Answer create(
@@ -50,7 +55,7 @@ public Answer create(
             final Long roomId,
             final Long questionId,
             final AnswerCreateDto answerCreateDto
-    ){
+    ) throws IOException {
         User user = userRetriever.findById(userId);
         Room room = roomRetriever.findById(roomId);
         Profile profile = profileRetriever.findByUserAndRoom(user, room);
@@ -60,8 +65,11 @@ public Answer create(
         );
         Double emotion = (confidence.positive() - confidence.negative()) * 0.01;
         Answer answer = answerSaver.create(
-                Answer.create(answerCreateDto, emotion, question, profile)
+                Answer.create(answerCreateDto.content(),
+                        s3Service.uploadImage(ANSWER_S3_UPLOAD_FOLDER, answerCreateDto.image()),
+                        emotion, question, profile)
         );
+
         profile.updateEmotion(
                 CalculateEmotion(
                         profile.getEmotion(),
diff --git a/src/main/java/com/telepigeon/server/service/naverCloud/NaverCloudService.java b/src/main/java/com/telepigeon/server/service/external/NaverCloudService.java
similarity index 97%
rename from src/main/java/com/telepigeon/server/service/naverCloud/NaverCloudService.java
rename to src/main/java/com/telepigeon/server/service/external/NaverCloudService.java
index 3378a9d..0e1c753 100644
--- a/src/main/java/com/telepigeon/server/service/naverCloud/NaverCloudService.java
+++ b/src/main/java/com/telepigeon/server/service/external/NaverCloudService.java
@@ -1,4 +1,4 @@
-package com.telepigeon.server.service.naverCloud;
+package com.telepigeon.server.service.external;
 
 import com.telepigeon.server.dto.naverCloud.request.ConfidenceCreateDto;
 import com.telepigeon.server.dto.naverCloud.ConfidenceDto;
diff --git a/src/main/java/com/telepigeon/server/service/external/S3Service.java b/src/main/java/com/telepigeon/server/service/external/S3Service.java
new file mode 100644
index 0000000..a390498
--- /dev/null
+++ b/src/main/java/com/telepigeon/server/service/external/S3Service.java
@@ -0,0 +1,75 @@
+package com.telepigeon.server.service.external;
+
+import com.telepigeon.server.config.AwsConfig;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.multipart.MultipartFile;
+import software.amazon.awssdk.core.sync.RequestBody;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
+import software.amazon.awssdk.services.s3.model.PutObjectRequest;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+
+@Component
+public class S3Service {
+
+    private final String bucketName;
+    private final AwsConfig awsConfig;
+    private static final List<String> IMAGE_EXTENSIONS = Arrays.asList("image/jpeg", "image/png", "image/jpg", "image/webp");
+
+    public S3Service(@Value("${aws-property.s3-bucket-name}") final String bucketName, AwsConfig awsConfig) {
+        this.bucketName = bucketName;
+        this.awsConfig = awsConfig;
+    }
+
+    public String uploadImage(String directoryPath, MultipartFile image) throws IOException {
+        final String key = directoryPath + generateImageFileName();
+        final S3Client s3Client = awsConfig.getS3Client();
+
+        validateExtension(image);
+        validateFileSize(image);
+
+        PutObjectRequest request = PutObjectRequest.builder()
+                .bucket(bucketName)
+                .key(key)
+                .contentType(image.getContentType())
+                .contentDisposition("inline")
+                .build();
+
+        RequestBody requestBody = RequestBody.fromBytes(image.getBytes());
+        s3Client.putObject(request, requestBody);
+        return key;
+    }
+
+    public void deleteImage(String key) throws IOException {
+        final S3Client s3Client = awsConfig.getS3Client();
+
+        s3Client.deleteObject((DeleteObjectRequest.Builder builder) ->
+                builder.bucket(bucketName)
+                        .key(key)
+                        .build());
+    }
+
+    private String generateImageFileName() {
+        return UUID.randomUUID() + ".jpg";
+    }
+
+    private void validateExtension(MultipartFile image) {
+        String contentType = image.getContentType();
+        if(!IMAGE_EXTENSIONS.contains(contentType)) {
+            throw new RuntimeException("이미지 확장자는 jpg, png, webp만 가능합니다.");
+        }
+    }
+
+    private static final Long MAX_FILE_SIZE = 5 * 1024 * 1024L;
+
+    private void validateFileSize(MultipartFile image) {
+        if (image.getSize() > MAX_FILE_SIZE) {
+            throw new RuntimeException("이미지 사이즈는 5MB를 넘을 수 없습니다.");
+        }
+    }
+}
diff --git a/src/main/resources/application-test.yml b/src/main/resources/application-test.yml
index 6bcdf94..cd7a63c 100644
--- a/src/main/resources/application-test.yml
+++ b/src/main/resources/application-test.yml
@@ -34,4 +34,10 @@ openai:
   model: gpt-3.5-turbo
   api:
     key: ${openai_api_key}
-    url: ${openai_api_url}
\ No newline at end of file
+    url: ${openai_api_url}
+
+aws-property:
+  s3-bucket-name: ${bucket_name}
+  access-key: ${access_key}
+  secret-key: ${secret_key}
+  aws-region: ap-northeast-2
\ No newline at end of file
diff --git a/src/test/java/com/telepigeon/server/answer/AnswerDomainTest.java b/src/test/java/com/telepigeon/server/answerTest/AnswerDomainTest.java
similarity index 72%
rename from src/test/java/com/telepigeon/server/answer/AnswerDomainTest.java
rename to src/test/java/com/telepigeon/server/answerTest/AnswerDomainTest.java
index 53cbe70..4c67c1f 100644
--- a/src/test/java/com/telepigeon/server/answer/AnswerDomainTest.java
+++ b/src/test/java/com/telepigeon/server/answerTest/AnswerDomainTest.java
@@ -1,4 +1,4 @@
-package com.telepigeon.server.answer;
+package com.telepigeon.server.answerTest;
 
 import com.telepigeon.server.domain.Answer;
 import com.telepigeon.server.dto.answer.request.AnswerCreateDto;
@@ -10,16 +10,16 @@ public class AnswerDomainTest {
     @Test
     @DisplayName("Answer 객체 생성")
     void createAnswerTest(){
-        AnswerCreateDto answerCreateDto = new AnswerCreateDto("content", "image");
-        Answer answer = Answer.create(answerCreateDto, 0.0, null, null);
+        AnswerCreateDto answerCreateDto = new AnswerCreateDto("content", null);
+        Answer answer = Answer.create(answerCreateDto.content(), null, null, null, null);
         Assertions.assertNotNull(answer);
     }
 
     @Test
     @DisplayName("Answer 객체 생성 확인")
     void checkCreateAnswerTest(){
-        AnswerCreateDto answerCreateDto = new AnswerCreateDto("content", "image");
-        Answer answer = Answer.create(answerCreateDto, 0.0, null, null);
+        AnswerCreateDto answerCreateDto = new AnswerCreateDto("content", null);
+        Answer answer = Answer.create(answerCreateDto.content(), null, null, null, null);
         Assertions.assertEquals(answer.getContent(), "content");
     }
 }
diff --git a/src/test/java/com/telepigeon/server/auth/AuthServiceTest.java b/src/test/java/com/telepigeon/server/authTest/AuthServiceTest.java
similarity index 99%
rename from src/test/java/com/telepigeon/server/auth/AuthServiceTest.java
rename to src/test/java/com/telepigeon/server/authTest/AuthServiceTest.java
index 5a1aee6..9a51ec5 100644
--- a/src/test/java/com/telepigeon/server/auth/AuthServiceTest.java
+++ b/src/test/java/com/telepigeon/server/authTest/AuthServiceTest.java
@@ -1,4 +1,4 @@
-package com.telepigeon.server.auth;
+package com.telepigeon.server.authTest;
 
 import com.telepigeon.server.domain.User;
 import com.telepigeon.server.dto.auth.response.JwtTokensDto;
diff --git a/src/test/java/com/telepigeon/server/question/QuestionDomainTest.java b/src/test/java/com/telepigeon/server/questionTest/QuestionDomainTest.java
similarity index 95%
rename from src/test/java/com/telepigeon/server/question/QuestionDomainTest.java
rename to src/test/java/com/telepigeon/server/questionTest/QuestionDomainTest.java
index e184568..5183f20 100644
--- a/src/test/java/com/telepigeon/server/question/QuestionDomainTest.java
+++ b/src/test/java/com/telepigeon/server/questionTest/QuestionDomainTest.java
@@ -1,4 +1,4 @@
-package com.telepigeon.server.question;
+package com.telepigeon.server.questionTest;
 
 import com.telepigeon.server.domain.Question;
 import org.junit.jupiter.api.Assertions;
diff --git a/src/test/java/com/telepigeon/server/question/QuestionServiceTest.java b/src/test/java/com/telepigeon/server/questionTest/QuestionServiceTest.java
similarity index 100%
rename from src/test/java/com/telepigeon/server/question/QuestionServiceTest.java
rename to src/test/java/com/telepigeon/server/questionTest/QuestionServiceTest.java
diff --git a/src/test/resources/application-test.yml b/src/test/resources/application-test.yml
index c436672..55b4a39 100644
--- a/src/test/resources/application-test.yml
+++ b/src/test/resources/application-test.yml
@@ -12,4 +12,10 @@ spring:
       ddl-auto: create-drop
     properties:
       hibernate:
-        dialect: org.hibernate.dialect.MySQL8Dialect
\ No newline at end of file
+        dialect: org.hibernate.dialect.MySQL8Dialect
+
+aws-property:
+  s3-bucket-name: ${bucket_name}
+  access-key: ${access_key}
+  secret-key: ${secret_key}
+  aws-region: ap-northeast-2
\ No newline at end of file