diff --git a/src/main/java/myblog/blog/article/adapter/incomming/web/ArticleController.java b/src/main/java/myblog/blog/article/adapter/incomming/web/ArticleController.java
index 4e5cfe6..2ce3fe9 100644
--- a/src/main/java/myblog/blog/article/adapter/incomming/web/ArticleController.java
+++ b/src/main/java/myblog/blog/article/adapter/incomming/web/ArticleController.java
@@ -12,6 +12,7 @@ import myblog.blog.article.application.port.response.ArticleResponseByCategory;
 import myblog.blog.article.application.port.response.ArticleResponseForCardBox;
 import myblog.blog.article.application.port.response.ArticleResponseForDetail;
 import myblog.blog.article.application.port.response.ArticleResponseForEdit;
+
 import myblog.blog.category.service.CategoryService;
 import myblog.blog.category.dto.*;
 import myblog.blog.member.auth.PrincipalDetails;
@@ -29,10 +30,8 @@ import org.springframework.ui.Model;
 import org.springframework.validation.Errors;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
-
 import javax.servlet.http.Cookie;
 import javax.servlet.http.HttpServletResponse;
-
 import java.util.List;
 import java.util.stream.Collectors;
 
diff --git a/src/main/java/myblog/blog/article/application/ArticleQueries.java b/src/main/java/myblog/blog/article/application/ArticleQueries.java
index fc06125..c416784 100644
--- a/src/main/java/myblog/blog/article/application/ArticleQueries.java
+++ b/src/main/java/myblog/blog/article/application/ArticleQueries.java
@@ -65,21 +65,26 @@ public class ArticleQueries implements ArticleQueriesUseCase {
     }
     /*
         - 카테고리별 게시물 페이징 처리해서 가져오기
+        - tier 1은 super / tier 2는 sub
     */
     @Override
     public Slice<ArticleResponseForCardBox> getArticlesByCategory(String category, Integer tier, Integer page) {
-        Slice<Article> articles;
+        Slice<Article> articles = null;
 
         if (tier.equals(0)) {
             articles = articleRepositoryPort
                     .findByOrderByIdDesc(
                             PageRequest.of(pageResolve(page), 5));
         }
-        else {
+        if (tier.equals(1)) {
             articles = articleRepositoryPort
                     .findBySupCategoryOrderByIdDesc(
                             PageRequest.of(pageResolve(page), 5), category);
-
+        }
+        if (tier.equals(2)) {
+            articles = articleRepositoryPort
+                    .findBySubCategoryOrderByIdDesc(
+                            PageRequest.of(pageResolve(page), 5), category);
         }
 
         if(articles == null) throw new IllegalArgumentException("NotFoundArticleException");
diff --git a/src/main/java/myblog/blog/base/config/AppConfig.java b/src/main/java/myblog/blog/base/config/AppConfig.java
index 2847482..b3fb9a0 100644
--- a/src/main/java/myblog/blog/base/config/AppConfig.java
+++ b/src/main/java/myblog/blog/base/config/AppConfig.java
@@ -6,7 +6,6 @@ import com.amazonaws.auth.BasicAWSCredentials;
 import com.amazonaws.regions.Regions;
 import com.amazonaws.services.s3.AmazonS3;
 import com.amazonaws.services.s3.AmazonS3ClientBuilder;
-import com.google.gson.Gson;
 import org.modelmapper.ModelMapper;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;