diff --git a/src/main/java/com/example/helloworldmvc/converter/CommentConverter.java b/src/main/java/com/example/helloworldmvc/converter/CommentConverter.java
index 323cc43..9b66f5a 100644
--- a/src/main/java/com/example/helloworldmvc/converter/CommentConverter.java
+++ b/src/main/java/com/example/helloworldmvc/converter/CommentConverter.java
@@ -4,6 +4,7 @@
 import com.example.helloworldmvc.domain.Community;
 import com.example.helloworldmvc.domain.User;
 import com.example.helloworldmvc.web.dto.CommentRequestDTO;
+import com.example.helloworldmvc.web.dto.CommentResponseDTO;
 
 public class CommentConverter {
 
@@ -15,4 +16,11 @@ public static Comment toComment(CommentRequestDTO.commentCreateReq request, Comm
                 .content(request.getContent())
                 .build();
     }
+
+    public static CommentResponseDTO.commentCreateRes toCommentCreateRes(Long commentId, Long communityId) {
+        return CommentResponseDTO.commentCreateRes.builder()
+                .commentId(commentId)
+                .communityId(communityId)
+                .build();
+    }
 }
diff --git a/src/main/java/com/example/helloworldmvc/converter/CommunityConverter.java b/src/main/java/com/example/helloworldmvc/converter/CommunityConverter.java
index 1e93b03..028ac79 100644
--- a/src/main/java/com/example/helloworldmvc/converter/CommunityConverter.java
+++ b/src/main/java/com/example/helloworldmvc/converter/CommunityConverter.java
@@ -127,6 +127,7 @@ public static CommunityResponseDTO.ModifyPostDTO toModifyPostDTO(Community commu
         return CommunityResponseDTO.ModifyPostDTO.builder()
                 .title(community.getTitle())
                 .content(community.getContent())
+                .communityCategory(community.getCommunityCategory())
                 .communityWriterEmail(community.getUser().getEmail())
                 .created_at(community.getCreatedAt())
                 .isOwner(isOwner)
diff --git a/src/main/java/com/example/helloworldmvc/domain/Community.java b/src/main/java/com/example/helloworldmvc/domain/Community.java
index b77f75c..12f74f9 100644
--- a/src/main/java/com/example/helloworldmvc/domain/Community.java
+++ b/src/main/java/com/example/helloworldmvc/domain/Community.java
@@ -55,5 +55,7 @@ public void setTitle(String title) {
     public void setContent(String content) {
         this.content = content;
     }
-
+    public void setCommunityCategory(CommunityCategory communityCategory) {
+        this.communityCategory = communityCategory;
+    }
 }
diff --git a/src/main/java/com/example/helloworldmvc/service/CommentServiceImpl.java b/src/main/java/com/example/helloworldmvc/service/CommentServiceImpl.java
index 158762a..c0cc3fc 100644
--- a/src/main/java/com/example/helloworldmvc/service/CommentServiceImpl.java
+++ b/src/main/java/com/example/helloworldmvc/service/CommentServiceImpl.java
@@ -44,7 +44,7 @@ public CommentResponseDTO.commentCreateRes createComment(String userId, Long com
         Comment comment = CommentConverter.toComment(requestBody, community, user, anonymousNumber);
         Comment savedComment = commentRepository.save(comment);
 
-        return new CommentResponseDTO.commentCreateRes(savedComment.getId());
+        return CommentConverter.toCommentCreateRes(savedComment.getId(), communityId);
     }
 
     @Override
diff --git a/src/main/java/com/example/helloworldmvc/service/CommunityServiceImpl.java b/src/main/java/com/example/helloworldmvc/service/CommunityServiceImpl.java
index c409738..c72bfea 100644
--- a/src/main/java/com/example/helloworldmvc/service/CommunityServiceImpl.java
+++ b/src/main/java/com/example/helloworldmvc/service/CommunityServiceImpl.java
@@ -100,6 +100,20 @@ public CommunityResponseDTO.ModifyPostDTO modifyCommunityPost(String userId, Lon
         if(community.getUser().getEmail().equals(user.getEmail())) {
             isOwner = true;
         }
+        switch (modifyPostDTO.getCommunityCategoryId()){
+            case 1 :
+                community.setCommunityCategory(CommunityCategory.WORRY);
+                break;
+            case 2 :
+                community.setCommunityCategory(CommunityCategory.MEDICAL);
+                break;
+            case 3 :
+                community.setCommunityCategory(CommunityCategory.QUALIFICATION);
+                break;
+            default :
+                community.setCommunityCategory(CommunityCategory.ETC);
+                break;
+        }
         communityRepository.save(community);
         return CommunityConverter.toModifyPostDTO(community, isOwner);
     }
diff --git a/src/main/java/com/example/helloworldmvc/web/dto/CommentResponseDTO.java b/src/main/java/com/example/helloworldmvc/web/dto/CommentResponseDTO.java
index 2b2483b..ef8c76a 100644
--- a/src/main/java/com/example/helloworldmvc/web/dto/CommentResponseDTO.java
+++ b/src/main/java/com/example/helloworldmvc/web/dto/CommentResponseDTO.java
@@ -13,6 +13,7 @@ public class CommentResponseDTO {
     @AllArgsConstructor
     public static class commentCreateRes{
         Long commentId;
+        Long communityId;
     }
 
     @Builder
diff --git a/src/main/java/com/example/helloworldmvc/web/dto/CommunityRequestDTO.java b/src/main/java/com/example/helloworldmvc/web/dto/CommunityRequestDTO.java
index 9759727..98bbc41 100644
--- a/src/main/java/com/example/helloworldmvc/web/dto/CommunityRequestDTO.java
+++ b/src/main/java/com/example/helloworldmvc/web/dto/CommunityRequestDTO.java
@@ -29,5 +29,7 @@ public static class ModifyPostDTO {
 
         @NotBlank
         String content;
+
+        Integer communityCategoryId;
     }
 }
diff --git a/src/main/java/com/example/helloworldmvc/web/dto/CommunityResponseDTO.java b/src/main/java/com/example/helloworldmvc/web/dto/CommunityResponseDTO.java
index f4072a3..6363f76 100644
--- a/src/main/java/com/example/helloworldmvc/web/dto/CommunityResponseDTO.java
+++ b/src/main/java/com/example/helloworldmvc/web/dto/CommunityResponseDTO.java
@@ -1,5 +1,6 @@
 package com.example.helloworldmvc.web.dto;
 
+import com.example.helloworldmvc.domain.enums.CommunityCategory;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;
@@ -80,6 +81,7 @@ public static class DeletedPostDTO{
     public static class ModifyPostDTO{
         String title;
         String content;
+        CommunityCategory communityCategory;
         String communityWriterEmail;
         LocalDateTime created_at;
         Boolean isOwner;