diff --git a/src/admins/banned-user/constants/banned-user.constant.ts b/src/admins/banned-user/constants/banned-user.constant.ts
index 829e703a..798833a9 100644
--- a/src/admins/banned-user/constants/banned-user.constant.ts
+++ b/src/admins/banned-user/constants/banned-user.constant.ts
@@ -1,4 +1,4 @@
 export const BANNED_USER_REASON_LENGTH = {
   MIN: 1,
-  MAX: 255,
+  MAX: 200,
 } as const;
diff --git a/src/admins/banned-user/dtos/create-banned-user-body.dto.ts b/src/admins/banned-user/dtos/create-banned-user-body.dto.ts
index 40d52fa2..85d29d0e 100644
--- a/src/admins/banned-user/dtos/create-banned-user-body.dto.ts
+++ b/src/admins/banned-user/dtos/create-banned-user-body.dto.ts
@@ -10,8 +10,8 @@ export class CreateBannedUserBodyDto
 {
   @ApiProperty({
     description: '정지 사유',
-    minLength: 1,
-    maxLength: 255,
+    minLength: BANNED_USER_REASON_LENGTH.MIN,
+    maxLength: BANNED_USER_REASON_LENGTH.MAX,
   })
   @Length(BANNED_USER_REASON_LENGTH.MIN, BANNED_USER_REASON_LENGTH.MAX)
   reason: string;
diff --git a/src/boards/constants/help-me-board-order-field.enum.ts b/src/boards/constants/help-me-board/help-me-board-order-field.enum.ts
similarity index 100%
rename from src/boards/constants/help-me-board-order-field.enum.ts
rename to src/boards/constants/help-me-board/help-me-board-order-field.enum.ts
diff --git a/src/boards/constants/help-me-board/help-me-board.constant.ts b/src/boards/constants/help-me-board/help-me-board.constant.ts
new file mode 100644
index 00000000..ad92b640
--- /dev/null
+++ b/src/boards/constants/help-me-board/help-me-board.constant.ts
@@ -0,0 +1,8 @@
+export const HELP_ME_BOARD_HEAD_LENGTH = {
+  MIN: 5,
+  MAX: 50,
+} as const;
+
+export const HELP_ME_BOARD_BODY_LENGTH = {
+  MIN: 10,
+} as const;
diff --git a/src/boards/constants/mentor-board-order-field.enum.ts b/src/boards/constants/mentor-board/mentor-board-order-field.enum.ts
similarity index 100%
rename from src/boards/constants/mentor-board-order-field.enum.ts
rename to src/boards/constants/mentor-board/mentor-board-order-field.enum.ts
diff --git a/src/boards/constants/mentor-board/mentor-board.constant.ts b/src/boards/constants/mentor-board/mentor-board.constant.ts
new file mode 100644
index 00000000..d3717240
--- /dev/null
+++ b/src/boards/constants/mentor-board/mentor-board.constant.ts
@@ -0,0 +1,8 @@
+export const MENTOR_BOARD_HEAD_LENGTH = {
+  MIN: 5,
+  MAX: 50,
+} as const;
+
+export const MENTOR_BOARD_BODY_LENGTH = {
+  MIN: 10,
+} as const;
diff --git a/src/boards/dto/helpMeBoard/create.help.me.board.dto.ts b/src/boards/dto/helpMeBoard/create.help.me.board.dto.ts
index 6a325bba..7e58bcb3 100644
--- a/src/boards/dto/helpMeBoard/create.help.me.board.dto.ts
+++ b/src/boards/dto/helpMeBoard/create.help.me.board.dto.ts
@@ -1,7 +1,8 @@
-import { IsNumber, IsString } from 'class-validator';
+import { HELP_ME_BOARD_HEAD_LENGTH } from '@src/boards/constants/help-me-board/help-me-board.constant';
+import { IsNumber, IsString, Length } from 'class-validator';
 
 export class CreateHelpMeBoardDto {
-  @IsString()
+  @Length(HELP_ME_BOARD_HEAD_LENGTH.MIN, HELP_ME_BOARD_HEAD_LENGTH.MAX)
   head: string;
 
   @IsString()
diff --git a/src/boards/dto/helpMeBoard/help-me-board-page-query.dto.ts b/src/boards/dto/helpMeBoard/help-me-board-page-query.dto.ts
index 13457aa6..3233268c 100644
--- a/src/boards/dto/helpMeBoard/help-me-board-page-query.dto.ts
+++ b/src/boards/dto/helpMeBoard/help-me-board-page-query.dto.ts
@@ -1,11 +1,18 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
-import { IsBoolean, IsEnum, IsNotEmpty, IsOptional } from 'class-validator';
+import {
+  IsBoolean,
+  IsEnum,
+  IsNotEmpty,
+  IsOptional,
+  Length,
+} from 'class-validator';
 import { PageQueryDto } from '@src/common/dto/page-query.dto';
 import { IsPositiveInt } from '@src/common/decorators/validators/is-positive-int.decorator';
-import { HelpMeBoardOrderField } from '@src/boards/constants/help-me-board-order-field.enum';
+import { HelpMeBoardOrderField } from '@src/boards/constants/help-me-board/help-me-board-order-field.enum';
 import { SortOrder } from '@src/common/constants/sort-order.enum';
 import { stringToBoolean } from '@src/common/decorators/transformer/string-to-boolean.transformer';
 import { Transform } from 'class-transformer';
+import { HELP_ME_BOARD_HEAD_LENGTH } from '@src/boards/constants/help-me-board/help-me-board.constant';
 
 export class HelpMeBoardPageQueryDto extends PageQueryDto {
   @ApiPropertyOptional({
@@ -26,9 +33,11 @@ export class HelpMeBoardPageQueryDto extends PageQueryDto {
 
   @ApiPropertyOptional({
     description: '제목 필터링',
+    minLength: HELP_ME_BOARD_HEAD_LENGTH.MIN,
+    maxLength: HELP_ME_BOARD_HEAD_LENGTH.MAX,
   })
   @IsOptional()
-  @IsNotEmpty()
+  @Length(HELP_ME_BOARD_HEAD_LENGTH.MIN, HELP_ME_BOARD_HEAD_LENGTH.MAX)
   head?: string;
 
   @ApiPropertyOptional({
diff --git a/src/boards/dto/helpMeBoard/help-me-board.dto.ts b/src/boards/dto/helpMeBoard/help-me-board.dto.ts
index 949fb912..3fda007c 100644
--- a/src/boards/dto/helpMeBoard/help-me-board.dto.ts
+++ b/src/boards/dto/helpMeBoard/help-me-board.dto.ts
@@ -1,4 +1,5 @@
 import { ApiProperty } from '@nestjs/swagger';
+import { HELP_ME_BOARD_HEAD_LENGTH } from '@src/boards/constants/help-me-board/help-me-board.constant';
 import { HelpMeBoard } from '@src/entities/HelpMeBoard';
 import { Exclude } from 'class-transformer';
 
@@ -22,7 +23,11 @@ export class HelpMeBoardDto
   })
   userId: number;
 
-  @ApiProperty({ description: '도와주세요 게시판 글 제목' })
+  @ApiProperty({
+    description: '도와주세요 게시판 글 제목',
+    minLength: HELP_ME_BOARD_HEAD_LENGTH.MIN,
+    maxLength: HELP_ME_BOARD_HEAD_LENGTH.MAX,
+  })
   head: string;
 
   @ApiProperty({ description: '도와주세요 게시판 글 내용' })
diff --git a/src/boards/dto/helpMeBoard/update.help.me.board.dto.ts b/src/boards/dto/helpMeBoard/update.help.me.board.dto.ts
index b9cecbff..ab7c8a3b 100644
--- a/src/boards/dto/helpMeBoard/update.help.me.board.dto.ts
+++ b/src/boards/dto/helpMeBoard/update.help.me.board.dto.ts
@@ -1,7 +1,8 @@
-import { IsNumber, IsString } from 'class-validator';
+import { HELP_ME_BOARD_HEAD_LENGTH } from '@src/boards/constants/help-me-board/help-me-board.constant';
+import { IsNumber, IsString, Length } from 'class-validator';
 
 export class UpdateHelpMeBoardDto {
-  @IsString()
+  @Length(HELP_ME_BOARD_HEAD_LENGTH.MIN, HELP_ME_BOARD_HEAD_LENGTH.MAX)
   head: string;
 
   @IsString()
diff --git a/src/boards/dto/mentorBoard/create.mentor.board.dto.ts b/src/boards/dto/mentorBoard/create.mentor.board.dto.ts
index f9eb8fef..c94c824c 100644
--- a/src/boards/dto/mentorBoard/create.mentor.board.dto.ts
+++ b/src/boards/dto/mentorBoard/create.mentor.board.dto.ts
@@ -1,7 +1,8 @@
-import { IsNumber, IsString } from 'class-validator';
+import { MENTOR_BOARD_HEAD_LENGTH } from '@src/boards/constants/mentor-board/mentor-board.constant';
+import { IsNumber, IsString, Length } from 'class-validator';
 
 export class CreateMentorBoardDto {
-  @IsString()
+  @Length(MENTOR_BOARD_HEAD_LENGTH.MIN, MENTOR_BOARD_HEAD_LENGTH.MAX)
   head: string;
 
   @IsString()
diff --git a/src/boards/dto/mentorBoard/mentor-board-page-query.dto.ts b/src/boards/dto/mentorBoard/mentor-board-page-query.dto.ts
index c0300542..2c83a6da 100644
--- a/src/boards/dto/mentorBoard/mentor-board-page-query.dto.ts
+++ b/src/boards/dto/mentorBoard/mentor-board-page-query.dto.ts
@@ -1,12 +1,19 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
 
-import { IsBoolean, IsEnum, IsNotEmpty, IsOptional } from 'class-validator';
-import { MentorBoardOrderField } from '@src/boards/constants/mentor-board-order-field.enum';
+import {
+  IsBoolean,
+  IsEnum,
+  IsNotEmpty,
+  IsOptional,
+  Length,
+} from 'class-validator';
+import { MentorBoardOrderField } from '@src/boards/constants/mentor-board/mentor-board-order-field.enum';
 import { PageQueryDto } from '@src/common/dto/page-query.dto';
 import { IsPositiveInt } from '@src/common/decorators/validators/is-positive-int.decorator';
 import { SortOrder } from '@src/common/constants/sort-order.enum';
 import { Transform } from 'class-transformer';
 import { stringToBoolean } from '@src/common/decorators/transformer/string-to-boolean.transformer';
+import { MENTOR_BOARD_HEAD_LENGTH } from '@src/boards/constants/mentor-board/mentor-board.constant';
 
 export class MentorBoardPageQueryDto extends PageQueryDto {
   @ApiPropertyOptional({
@@ -27,9 +34,11 @@ export class MentorBoardPageQueryDto extends PageQueryDto {
 
   @ApiPropertyOptional({
     description: '제목 필터링',
+    minLength: MENTOR_BOARD_HEAD_LENGTH.MIN,
+    maxLength: MENTOR_BOARD_HEAD_LENGTH.MAX,
   })
   @IsOptional()
-  @IsNotEmpty()
+  @Length(MENTOR_BOARD_HEAD_LENGTH.MIN, MENTOR_BOARD_HEAD_LENGTH.MAX)
   head?: string;
 
   @ApiPropertyOptional({
diff --git a/src/boards/dto/mentorBoard/mentor-board.dto.ts b/src/boards/dto/mentorBoard/mentor-board.dto.ts
index 6d9a3578..5459c9f9 100644
--- a/src/boards/dto/mentorBoard/mentor-board.dto.ts
+++ b/src/boards/dto/mentorBoard/mentor-board.dto.ts
@@ -1,4 +1,5 @@
 import { ApiProperty } from '@nestjs/swagger';
+import { MENTOR_BOARD_HEAD_LENGTH } from '@src/boards/constants/mentor-board/mentor-board.constant';
 import { MentorBoard } from '@src/entities/MentorBoard';
 import { Exclude } from 'class-transformer';
 
@@ -19,7 +20,11 @@ export class MentorBoardDto
   })
   userId: number;
 
-  @ApiProperty({ description: '멘토 게시판 글 제목' })
+  @ApiProperty({
+    description: '멘토 게시판 글 제목',
+    minLength: MENTOR_BOARD_HEAD_LENGTH.MIN,
+    maxLength: MENTOR_BOARD_HEAD_LENGTH.MAX,
+  })
   head: string;
 
   @ApiProperty({ description: '멘토 게시판 글 내용' })
diff --git a/src/boards/dto/mentorBoard/update.mentor.board.dto.ts b/src/boards/dto/mentorBoard/update.mentor.board.dto.ts
index 6a361f04..7c56b08e 100644
--- a/src/boards/dto/mentorBoard/update.mentor.board.dto.ts
+++ b/src/boards/dto/mentorBoard/update.mentor.board.dto.ts
@@ -1,7 +1,8 @@
-import { IsNumber, IsString } from 'class-validator';
+import { MENTOR_BOARD_HEAD_LENGTH } from '@src/boards/constants/mentor-board/mentor-board.constant';
+import { IsNumber, IsString, Length } from 'class-validator';
 
 export class UpdateMentorBoardDto {
-  @IsString()
+  @Length(MENTOR_BOARD_HEAD_LENGTH.MIN, MENTOR_BOARD_HEAD_LENGTH.MAX)
   head: string;
 
   @IsString()
diff --git a/src/boards/repository/help.me.board.repository.ts b/src/boards/repository/help.me.board.repository.ts
index 02c9ebfd..98c56376 100644
--- a/src/boards/repository/help.me.board.repository.ts
+++ b/src/boards/repository/help.me.board.repository.ts
@@ -3,7 +3,7 @@ import { Injectable } from '@nestjs/common';
 import { SortOrder } from '@src/common/constants/sort-order.enum';
 import { QueryBuilderHelper } from '@src/helpers/query-builder.helper';
 import { HelpYouCommentOrderField } from '@src/comments/constants/help-you-comment-order-field.enum';
-import { HelpMeBoardOrderField } from '@src/boards/constants/help-me-board-order-field.enum';
+import { HelpMeBoardOrderField } from '@src/boards/constants/help-me-board/help-me-board-order-field.enum';
 import { CreateHelpMeBoardDto } from '@src/boards/dto/helpMeBoard/create.help.me.board.dto';
 import { UpdateHelpMeBoardDto } from '@src/boards/dto/helpMeBoard/update.help.me.board.dto';
 import { HelpMeBoard } from '@src/entities/HelpMeBoard';
diff --git a/src/boards/repository/mentor.boards.repository.ts b/src/boards/repository/mentor.boards.repository.ts
index f78d71ab..4110bbda 100644
--- a/src/boards/repository/mentor.boards.repository.ts
+++ b/src/boards/repository/mentor.boards.repository.ts
@@ -8,7 +8,7 @@ import { Injectable } from '@nestjs/common';
 import { QueryDeepPartialEntity } from 'typeorm/query-builder/QueryPartialEntity';
 import { QueryBuilderHelper } from '@src/helpers/query-builder.helper';
 import { SortOrder } from '@src/common/constants/sort-order.enum';
-import { MentorBoardOrderField } from '@src/boards/constants/mentor-board-order-field.enum';
+import { MentorBoardOrderField } from '@src/boards/constants/mentor-board/mentor-board-order-field.enum';
 import { CreateMentorBoardDto } from '@src/boards/dto/mentorBoard/create.mentor.board.dto';
 import { MentorBoardDto } from '@src/boards/dto/mentorBoard/mentor-board.dto';
 import { UpdateMentorBoardDto } from '@src/boards/dto/mentorBoard/update.mentor.board.dto';
diff --git a/src/category/dto/category-list.dto.ts b/src/category/dto/category.dto.ts
similarity index 100%
rename from src/category/dto/category-list.dto.ts
rename to src/category/dto/category.dto.ts
diff --git a/src/category/services/category.service.ts b/src/category/services/category.service.ts
index 46446d90..55def158 100644
--- a/src/category/services/category.service.ts
+++ b/src/category/services/category.service.ts
@@ -1,5 +1,5 @@
 import { Injectable, NotFoundException } from '@nestjs/common';
-import { CategoryDto } from '@src/category/dto/category-list.dto';
+import { CategoryDto } from '@src/category/dto/category.dto';
 import { CategoryRepository } from '@src/category/repositories/category.repository';
 
 @Injectable()
diff --git a/src/common/types/order-field-for-helper.type.ts b/src/common/types/order-field-for-helper.type.ts
index dc298f68..45644aa4 100644
--- a/src/common/types/order-field-for-helper.type.ts
+++ b/src/common/types/order-field-for-helper.type.ts
@@ -1,6 +1,6 @@
 import { BannedUserOrderField } from '@src/admins/banned-user/constants/banned-user-order-field.enum';
-import { HelpMeBoardOrderField } from '@src/boards/constants/help-me-board-order-field.enum';
-import { MentorBoardOrderField } from '@src/boards/constants/mentor-board-order-field.enum';
+import { HelpMeBoardOrderField } from '@src/boards/constants/help-me-board/help-me-board-order-field.enum';
+import { MentorBoardOrderField } from '@src/boards/constants/mentor-board/mentor-board-order-field.enum';
 import { HelpYouCommentOrderField } from '@src/comments/constants/help-you-comment-order-field.enum';
 import { MentorOrderField } from '@src/mentors/constants/mentor-order-field.enum';
 
diff --git a/src/entities/HelpMeBoard.ts b/src/entities/HelpMeBoard.ts
index 26ff7ec4..c826ca5b 100644
--- a/src/entities/HelpMeBoard.ts
+++ b/src/entities/HelpMeBoard.ts
@@ -43,7 +43,7 @@ export class HelpMeBoard {
   @Column('varchar', {
     name: 'head',
     comment: '도와주세요 게시글 제목',
-    length: 30,
+    length: 50,
   })
   head: string;
 
diff --git a/src/entities/MentorBoard.ts b/src/entities/MentorBoard.ts
index dda5d0ac..e2806e9d 100644
--- a/src/entities/MentorBoard.ts
+++ b/src/entities/MentorBoard.ts
@@ -40,7 +40,7 @@ export class MentorBoard {
   })
   categoryId: number;
 
-  @Column('varchar', { name: 'head', comment: '멘토 게시글 제목', length: 30 })
+  @Column('varchar', { name: 'head', comment: '멘토 게시글 제목', length: 50 })
   head: string;
 
   @Column('text', { name: 'body', comment: '멘토 게시글 본문' })
diff --git a/src/mentors/dtos/mentor-list-page-query.dto.ts b/src/mentors/dtos/mentor-list-page-query.dto.ts
index 92988ee3..f596ed4f 100644
--- a/src/mentors/dtos/mentor-list-page-query.dto.ts
+++ b/src/mentors/dtos/mentor-list-page-query.dto.ts
@@ -1,10 +1,11 @@
 import { PageQueryDto } from '@src/common/dto/page-query.dto';
 import { SortOrder } from '@src/common/constants/sort-order.enum';
 import { ApiPropertyOptional } from '@nestjs/swagger';
-import { IsEnum, IsNotEmpty, IsOptional } from 'class-validator';
+import { IsEnum, IsOptional, Length } from 'class-validator';
 import { IsPositiveInt } from '@src/common/decorators/validators/is-positive-int.decorator';
 import { MentorOrderField } from '@src/mentors/constants/mentor-order-field.enum';
 import { User } from '@src/entities/User';
+import { USER_NAME_LENGTH } from '@src/users/constants/user.constant';
 
 export class MentorListPageQueryDto
   extends PageQueryDto
@@ -20,9 +21,11 @@ export class MentorListPageQueryDto
 
   @ApiPropertyOptional({
     description: '멘토 이름 필터링',
+    minLength: USER_NAME_LENGTH.MIN,
+    maxLength: USER_NAME_LENGTH.MAX,
   })
   @IsOptional()
-  @IsNotEmpty()
+  @Length(USER_NAME_LENGTH.MIN, USER_NAME_LENGTH.MAX)
   name?: string;
 
   @ApiPropertyOptional({
diff --git a/src/mentors/dtos/user-intro-response.dto.ts b/src/mentors/dtos/user-intro-response.dto.ts
index 0730732d..6109703a 100644
--- a/src/mentors/dtos/user-intro-response.dto.ts
+++ b/src/mentors/dtos/user-intro-response.dto.ts
@@ -1,16 +1,24 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { UserIntro } from '@src/entities/UserIntro';
+import {
+  USER_CUSTOM_CATEGORY_LENGTH,
+  USER_SHORT_INTRO_LENGTH,
+} from '@src/users/constants/user.constant';
 
 export class UserIntroResponseDto
   implements Pick<UserIntro, 'shortIntro' | 'customCategory'>
 {
   @ApiProperty({
     description: '멘토 짧은 소개',
+    minLength: USER_SHORT_INTRO_LENGTH.MIN,
+    maxLength: USER_SHORT_INTRO_LENGTH.MAX,
   })
   shortIntro: string;
 
   @ApiProperty({
     description: '멘토 커스텀 카테고리',
+    minLength: USER_CUSTOM_CATEGORY_LENGTH.MIN,
+    maxLength: USER_CUSTOM_CATEGORY_LENGTH.MAX,
   })
   customCategory: string;
 }
diff --git a/src/mentors/dtos/user-with-image-and-intro.dto.ts b/src/mentors/dtos/user-with-image-and-intro.dto.ts
index 6d1629e4..14fa6e13 100644
--- a/src/mentors/dtos/user-with-image-and-intro.dto.ts
+++ b/src/mentors/dtos/user-with-image-and-intro.dto.ts
@@ -2,6 +2,7 @@ import { ApiProperty, PickType } from '@nestjs/swagger';
 import { Exclude } from 'class-transformer';
 import { UserForJoinDto } from '@src/users/dtos/user-for-join.dto';
 import { UserIntroResponseDto } from '@src/mentors/dtos/user-intro-response.dto';
+import { USER_NAME_LENGTH } from '@src/users/constants/user.constant';
 
 export class UserWithImageAndIntroDto extends PickType(UserForJoinDto, [
   'userImage',
@@ -14,6 +15,8 @@ export class UserWithImageAndIntroDto extends PickType(UserForJoinDto, [
 
   @ApiProperty({
     description: '유저 이름',
+    minLength: USER_NAME_LENGTH.MIN,
+    maxLength: USER_NAME_LENGTH.MAX,
   })
   name: string;
 
@@ -22,6 +25,7 @@ export class UserWithImageAndIntroDto extends PickType(UserForJoinDto, [
 
   @ApiProperty({
     description: '유저 랭크',
+    format: 'integer',
   })
   rank: number;
 
@@ -32,11 +36,13 @@ export class UserWithImageAndIntroDto extends PickType(UserForJoinDto, [
 
   @ApiProperty({
     description: '멘토 리뷰 후기 당한 개수',
+    format: 'integer',
   })
   mentorReviewCount: number;
 
   @ApiProperty({
     description: '멘토 게시판 글쓴 갯수',
+    format: 'integer',
   })
   mentorBoardCount: number;
 
diff --git a/src/mentors/mentor-reviews/constants/mentor-review.constant.ts b/src/mentors/mentor-reviews/constants/mentor-review.constant.ts
new file mode 100644
index 00000000..ce8b842c
--- /dev/null
+++ b/src/mentors/mentor-reviews/constants/mentor-review.constant.ts
@@ -0,0 +1,4 @@
+export const MENTOR_REVIEW_REVIEW_LENGTH = {
+  MIN: 1,
+  MAX: 200,
+} as const;
diff --git a/src/mentors/mentor-reviews/dtos/create-mentor-review-request-body.dto.ts b/src/mentors/mentor-reviews/dtos/create-mentor-review-request-body.dto.ts
index a138d741..f5d0eadb 100644
--- a/src/mentors/mentor-reviews/dtos/create-mentor-review-request-body.dto.ts
+++ b/src/mentors/mentor-reviews/dtos/create-mentor-review-request-body.dto.ts
@@ -1,9 +1,10 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
-import { IsNotEmpty, IsOptional, ValidateNested } from 'class-validator';
+import { IsOptional, Length, ValidateNested } from 'class-validator';
 import { Type } from 'class-transformer';
 import { IsNotEmptyObjectAndAllFalse } from '@src/common/decorators/validators/is-not-empty-object-and-all-false.decorator';
 import { MentorReviewDto } from '@src/mentors/mentor-reviews/dtos/mentor-review.dto';
 import { CreateMentorReviewChecklistRequestBodyDto } from '@src/mentors/mentor-reviews/dtos/create-mentor-review-checklist-request-body.dto';
+import { MENTOR_REVIEW_REVIEW_LENGTH } from '@src/mentors/mentor-reviews/constants/mentor-review.constant';
 
 export class CreateMentorReviewRequestBodyDto
   implements Partial<MentorReviewDto>
@@ -19,8 +20,10 @@ export class CreateMentorReviewRequestBodyDto
 
   @ApiPropertyOptional({
     description: '멘토 리뷰 내용',
+    minLength: MENTOR_REVIEW_REVIEW_LENGTH.MIN,
+    maxLength: MENTOR_REVIEW_REVIEW_LENGTH.MAX,
   })
   @IsOptional()
-  @IsNotEmpty()
+  @Length(MENTOR_REVIEW_REVIEW_LENGTH.MIN, MENTOR_REVIEW_REVIEW_LENGTH.MAX)
   review?: string;
 }
diff --git a/src/mentors/mentor-reviews/dtos/mentor-review-page-query-dto.ts b/src/mentors/mentor-reviews/dtos/mentor-review-page-query-dto.ts
index 0d958019..b5dfea66 100644
--- a/src/mentors/mentor-reviews/dtos/mentor-review-page-query-dto.ts
+++ b/src/mentors/mentor-reviews/dtos/mentor-review-page-query-dto.ts
@@ -1,17 +1,19 @@
 import { ApiPropertyOptional } from '@nestjs/swagger';
 
-import { IsBoolean, IsEnum, IsNotEmpty, IsOptional } from 'class-validator';
+import { IsBoolean, IsEnum, IsOptional, Length } from 'class-validator';
 import { PageQueryDto } from '@src/common/dto/page-query.dto';
 import { SortOrder } from '@src/common/constants/sort-order.enum';
 import { IsPositiveInt } from '@src/common/decorators/validators/is-positive-int.decorator';
 import { MentorReviewOrderField } from '@src/mentors/mentor-reviews/constants/mentor-review-order-field.enum';
 import { Transform } from 'class-transformer';
 import { stringToBoolean } from '@src/common/decorators/transformer/string-to-boolean.transformer';
+import { MENTOR_REVIEW_REVIEW_LENGTH } from '@src/mentors/mentor-reviews/constants/mentor-review.constant';
 
 export class MentorReviewPageQueryDto extends PageQueryDto {
   @ApiPropertyOptional({
     description: '리뷰 고유 ID 필터링',
     format: 'integer',
+    minimum: 1,
   })
   @IsOptional()
   @IsPositiveInt()
@@ -20,6 +22,7 @@ export class MentorReviewPageQueryDto extends PageQueryDto {
   @ApiPropertyOptional({
     description: '멘티 고유 ID 필터링',
     format: 'integer',
+    minimum: 1,
   })
   @IsOptional()
   @IsPositiveInt()
@@ -107,9 +110,11 @@ export class MentorReviewPageQueryDto extends PageQueryDto {
 
   @ApiPropertyOptional({
     description: '리뷰 내용 필터링',
+    minLength: MENTOR_REVIEW_REVIEW_LENGTH.MIN,
+    maxLength: MENTOR_REVIEW_REVIEW_LENGTH.MAX,
   })
   @IsOptional()
-  @IsNotEmpty()
+  @Length(MENTOR_REVIEW_REVIEW_LENGTH.MIN, MENTOR_REVIEW_REVIEW_LENGTH.MAX)
   review?: string;
 
   @ApiPropertyOptional({
diff --git a/src/mentors/mentor-reviews/dtos/mentor-review.dto.ts b/src/mentors/mentor-reviews/dtos/mentor-review.dto.ts
index 03ec4eb6..bbf42c25 100644
--- a/src/mentors/mentor-reviews/dtos/mentor-review.dto.ts
+++ b/src/mentors/mentor-reviews/dtos/mentor-review.dto.ts
@@ -1,5 +1,6 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { MentorReview } from '@src/entities/MentorReview';
+import { MENTOR_REVIEW_REVIEW_LENGTH } from '@src/mentors/mentor-reviews/constants/mentor-review.constant';
 import { Exclude } from 'class-transformer';
 
 export class MentorReviewDto
@@ -30,6 +31,8 @@ export class MentorReviewDto
     description: '멘티가 작성한 리뷰',
     nullable: true,
     type: () => String,
+    minLength: MENTOR_REVIEW_REVIEW_LENGTH.MIN,
+    maxLength: MENTOR_REVIEW_REVIEW_LENGTH.MAX,
   })
   review: string | null;
 
diff --git a/src/mentors/mentor-reviews/dtos/mentor-reviews-item-response.dto.ts b/src/mentors/mentor-reviews/dtos/mentor-reviews-item-response.dto.ts
index ea7d9571..c06e9924 100644
--- a/src/mentors/mentor-reviews/dtos/mentor-reviews-item-response.dto.ts
+++ b/src/mentors/mentor-reviews/dtos/mentor-reviews-item-response.dto.ts
@@ -1,7 +1,14 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { UserImage } from '@src/entities/UserImage';
 import { UserIntro } from '@src/entities/UserIntro';
+import { MENTOR_REVIEW_REVIEW_LENGTH } from '@src/mentors/mentor-reviews/constants/mentor-review.constant';
 import { MentorReviewDto } from '@src/mentors/mentor-reviews/dtos/mentor-review.dto';
+import {
+  USER_CAREER_LENGTH,
+  USER_CUSTOM_CATEGORY_LENGTH,
+  USER_NAME_LENGTH,
+  USER_SHORT_INTRO_LENGTH,
+} from '@src/users/constants/user.constant';
 import { UserInfoDto } from '@src/users/dtos/user-info.dto';
 import { Exclude } from 'class-transformer';
 
@@ -17,16 +24,22 @@ class UserIntroDto
 {
   @ApiProperty({
     description: '커스텀 카테고리',
+    minLength: USER_CUSTOM_CATEGORY_LENGTH.MIN,
+    maxLength: USER_CUSTOM_CATEGORY_LENGTH.MAX,
   })
   customCategory: string;
 
   @ApiProperty({
     description: '유저 커리어',
+    minLength: USER_CAREER_LENGTH.MIN,
+    maxLength: USER_CAREER_LENGTH.MAX,
   })
   career: string;
 
   @ApiProperty({
     description: '멘토 소개',
+    minLength: USER_SHORT_INTRO_LENGTH.MIN,
+    maxLength: USER_SHORT_INTRO_LENGTH.MAX,
   })
   shortIntro: string;
 }
@@ -40,16 +53,19 @@ class Mentee implements Pick<UserInfoDto, 'id' | 'name' | 'rank'> {
 
   @ApiProperty({
     description: '유저 이름',
+    minLength: USER_NAME_LENGTH.MIN,
+    maxLength: USER_NAME_LENGTH.MAX,
   })
   name: string;
 
   @ApiProperty({
     description: '유저 랭크',
+    format: 'integer',
   })
   rank: number;
 
   @ApiProperty({
-    description: '유저 랭크',
+    description: '유저 이미지 객체',
   })
   userImage: UserImageDto;
 
@@ -80,6 +96,8 @@ export class MentorReviewsItemResponseDto
     description: '멘티가 작성한 리뷰',
     nullable: true,
     type: () => String,
+    minLength: MENTOR_REVIEW_REVIEW_LENGTH.MIN,
+    maxLength: MENTOR_REVIEW_REVIEW_LENGTH.MAX,
   })
   review: string | null;
 
diff --git a/src/mentors/mentor-reviews/dtos/patch-update-mentor-review.dto.ts b/src/mentors/mentor-reviews/dtos/patch-update-mentor-review.dto.ts
index 86211603..6b99ab09 100644
--- a/src/mentors/mentor-reviews/dtos/patch-update-mentor-review.dto.ts
+++ b/src/mentors/mentor-reviews/dtos/patch-update-mentor-review.dto.ts
@@ -1,8 +1,9 @@
 import { ApiPropertyOptional } from '@nestjs/swagger';
 import { Type } from 'class-transformer';
-import { IsNotEmpty, IsOptional, ValidateNested } from 'class-validator';
+import { IsOptional, Length, ValidateNested } from 'class-validator';
 import { IsNotEmptyObjectAndAllFalse } from '@src/common/decorators/validators/is-not-empty-object-and-all-false.decorator';
 import { CreateMentorReviewChecklistRequestBodyDto } from '@src/mentors/mentor-reviews/dtos/create-mentor-review-checklist-request-body.dto';
+import { MENTOR_REVIEW_REVIEW_LENGTH } from '@src/mentors/mentor-reviews/constants/mentor-review.constant';
 
 export class PatchUpdateMentorReviewDto {
   @ApiPropertyOptional({
@@ -17,8 +18,10 @@ export class PatchUpdateMentorReviewDto {
 
   @ApiPropertyOptional({
     description: '멘토 리뷰 내용',
+    minLength: MENTOR_REVIEW_REVIEW_LENGTH.MIN,
+    maxLength: MENTOR_REVIEW_REVIEW_LENGTH.MAX,
   })
   @IsOptional()
-  @IsNotEmpty()
+  @Length(MENTOR_REVIEW_REVIEW_LENGTH.MIN, MENTOR_REVIEW_REVIEW_LENGTH.MAX)
   review?: string;
 }
diff --git a/src/mentors/repositories/mentor.repository.ts b/src/mentors/repositories/mentor.repository.ts
index 8dfd1c8e..9180a5bb 100644
--- a/src/mentors/repositories/mentor.repository.ts
+++ b/src/mentors/repositories/mentor.repository.ts
@@ -33,16 +33,16 @@ export class MentorRepository {
       .createQueryBuilder('user')
       .innerJoin('user.userImage', 'userImage')
       .innerJoin('user.userIntro', 'userIntro')
-      .leftJoin('user.mentor', 'mentor')
-      .leftJoin('user.mentorBoard', 'mentorBoard')
+      .leftJoin('user.reviewed', 'reviewed')
+      .leftJoin('user.mentorBoards', 'mentorBoards')
       .select([
         'user.id as id',
         'user.name as name',
         'user.rank as user_rank',
         'JSON_OBJECT("imageUrl", userImage.imageUrl) as userImage',
         'JSON_OBJECT("shortIntro", userIntro.shortIntro, "customCategory", userIntro.customCategory) as userIntro',
-        'COUNT(DISTINCT mentor.id) as mentorReviewCount',
-        'COUNT(DISTINCT mentorBoard.id) as mentorBoardCount',
+        'COUNT(DISTINCT reviewed.id) as mentorReviewCount',
+        'COUNT(DISTINCT mentorBoards.id) as mentorBoardCount',
       ])
       .where('user.isMentor = true');
 
diff --git a/src/migrations/__utils/util.ts b/src/migrations/__utils/util.ts
index a5c48e98..74d9e749 100644
--- a/src/migrations/__utils/util.ts
+++ b/src/migrations/__utils/util.ts
@@ -45,7 +45,7 @@ export const generateHeadColumn = (
   return {
     name: 'head',
     type: 'varchar',
-    length: '30',
+    length: '50',
     isNullable: false,
     comment,
   };
diff --git a/src/reports/constants/report.constant.ts b/src/reports/constants/report.constant.ts
index f6e32afd..af534891 100644
--- a/src/reports/constants/report.constant.ts
+++ b/src/reports/constants/report.constant.ts
@@ -1,4 +1,4 @@
 export const REPORT_REASON_LENGTH = {
   MIN: 1,
-  MAX: 255,
+  MAX: 200,
 } as const;
diff --git a/src/search/dtos/search-all-help-me-board.dto.ts b/src/search/dtos/search-all-help-me-board.dto.ts
index b11ff298..2d9161bc 100644
--- a/src/search/dtos/search-all-help-me-board.dto.ts
+++ b/src/search/dtos/search-all-help-me-board.dto.ts
@@ -3,6 +3,7 @@ import { Exclude } from 'class-transformer';
 import { SearchUserDto } from '@src/search/dtos/search-user-dto';
 import { HelpMeBoard } from '@src/entities/HelpMeBoard';
 import { Category } from '@src/entities/Category';
+import { HELP_ME_BOARD_HEAD_LENGTH } from '@src/boards/constants/help-me-board/help-me-board.constant';
 
 export class SearchAllHelpMeBoardDto
   implements
@@ -26,6 +27,8 @@ export class SearchAllHelpMeBoardDto
 
   @ApiProperty({
     description: '도와주세요 게시글 제목',
+    minLength: HELP_ME_BOARD_HEAD_LENGTH.MIN,
+    maxLength: HELP_ME_BOARD_HEAD_LENGTH.MAX,
   })
   head: string;
 
diff --git a/src/search/dtos/search-all-mentor.dto.ts b/src/search/dtos/search-all-mentor.dto.ts
index 4817ee91..ce5b4cfe 100644
--- a/src/search/dtos/search-all-mentor.dto.ts
+++ b/src/search/dtos/search-all-mentor.dto.ts
@@ -2,6 +2,7 @@ import { ApiProperty } from '@nestjs/swagger';
 import { User } from '@src/entities/User';
 import { UserImage } from '@src/entities/UserImage';
 import { UserIntro } from '@src/entities/UserIntro';
+import { USER_NAME_LENGTH } from '@src/users/constants/user.constant';
 
 export class SearchAllMentorDto
   implements Pick<User, 'id' | 'name' | 'isMentor'>
@@ -13,6 +14,8 @@ export class SearchAllMentorDto
 
   @ApiProperty({
     description: '멘토 유저 이름',
+    minLength: USER_NAME_LENGTH.MIN,
+    maxLength: USER_NAME_LENGTH.MAX,
   })
   name: string;
 
diff --git a/src/search/dtos/search-user-dto.ts b/src/search/dtos/search-user-dto.ts
index 5001e762..6c693516 100644
--- a/src/search/dtos/search-user-dto.ts
+++ b/src/search/dtos/search-user-dto.ts
@@ -1,6 +1,7 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { User } from '@src/entities/User';
 import { UserImage } from '@src/entities/UserImage';
+import { USER_NAME_LENGTH } from '@src/users/constants/user.constant';
 
 export class SearchUserDto implements Pick<User, 'id' | 'name'> {
   @ApiProperty({
@@ -11,6 +12,8 @@ export class SearchUserDto implements Pick<User, 'id' | 'name'> {
 
   @ApiProperty({
     description: '작성자 이름',
+    minLength: USER_NAME_LENGTH.MIN,
+    maxLength: USER_NAME_LENGTH.MAX,
   })
   name: string;
 
diff --git a/src/users/constants/user.constant.ts b/src/users/constants/user.constant.ts
new file mode 100644
index 00000000..c481847e
--- /dev/null
+++ b/src/users/constants/user.constant.ts
@@ -0,0 +1,39 @@
+export const USER_NAME_LENGTH = {
+  MIN: 1,
+  MAX: 20,
+} as const;
+
+export const USER_SHORT_INTRO_LENGTH = {
+  MIN: 1,
+  MAX: 50,
+} as const;
+
+export const USER_CUSTOM_CATEGORY_LENGTH = {
+  MIN: 1,
+  MAX: 200,
+} as const;
+
+export const USER_CAREER_LENGTH = {
+  MIN: 1,
+  MAX: 200,
+} as const;
+
+export const USER_DETAIL_LENGTH = {
+  MIN: 1,
+  MAX: 200,
+} as const;
+
+export const USER_PORTFOLIO_LENGTH = {
+  MIN: 1,
+  MAX: 100,
+} as const;
+
+export const USER_SNS_LENGTH = {
+  MIN: 1,
+  MAX: 100,
+} as const;
+
+export const USER_EMAIL_LENGTH = {
+  MIN: 1,
+  MAX: 50,
+} as const;
diff --git a/src/users/dtos/create-user.dto.ts b/src/users/dtos/create-user.dto.ts
index 124ff05d..11cc4c3d 100644
--- a/src/users/dtos/create-user.dto.ts
+++ b/src/users/dtos/create-user.dto.ts
@@ -1,9 +1,10 @@
+import { UserProvider } from '@src/auth/enums/user-provider.enum';
 import { UserRole } from '@src/users/constants/user-role.enum';
-import { IsBoolean, IsEmail, IsString } from 'class-validator';
+import { IsBoolean, IsEmail, IsEnum, IsString } from 'class-validator';
 
 export class CreateUserDto {
-  @IsString()
-  readonly provider: string;
+  @IsEnum(UserProvider)
+  readonly provider: UserProvider;
 
   @IsString()
   readonly name: string;
diff --git a/src/users/dtos/get-my-intro.dto.ts b/src/users/dtos/get-my-intro.dto.ts
index 71922db0..09aa63d8 100644
--- a/src/users/dtos/get-my-intro.dto.ts
+++ b/src/users/dtos/get-my-intro.dto.ts
@@ -1,5 +1,13 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { UserIntro } from '@src/entities/UserIntro';
+import {
+  USER_CAREER_LENGTH,
+  USER_CUSTOM_CATEGORY_LENGTH,
+  USER_DETAIL_LENGTH,
+  USER_PORTFOLIO_LENGTH,
+  USER_SHORT_INTRO_LENGTH,
+  USER_SNS_LENGTH,
+} from '@src/users/constants/user.constant';
 import { Exclude } from 'class-transformer';
 
 export class MyIntroDto implements Omit<UserIntro, 'user'> {
@@ -11,31 +19,43 @@ export class MyIntroDto implements Omit<UserIntro, 'user'> {
 
   @ApiProperty({
     description: '커스텀 카테고리',
+    minLength: USER_CUSTOM_CATEGORY_LENGTH.MIN,
+    maxLength: USER_CUSTOM_CATEGORY_LENGTH.MAX,
   })
   customCategory: string;
 
   @ApiProperty({
     description: '한 줄 소개',
+    minLength: USER_SHORT_INTRO_LENGTH.MIN,
+    maxLength: USER_SHORT_INTRO_LENGTH.MAX,
   })
   shortIntro: string;
 
   @ApiProperty({
     description: '경력',
+    minLength: USER_CAREER_LENGTH.MIN,
+    maxLength: USER_CAREER_LENGTH.MAX,
   })
   career: string;
 
   @ApiProperty({
     description: '세부 사항',
+    minLength: USER_DETAIL_LENGTH.MIN,
+    maxLength: USER_DETAIL_LENGTH.MAX,
   })
   detail: string;
 
   @ApiProperty({
     description: '포트폴리오',
+    minLength: USER_PORTFOLIO_LENGTH.MIN,
+    maxLength: USER_PORTFOLIO_LENGTH.MAX,
   })
   portfolio: string;
 
   @ApiProperty({
     description: 'SNS',
+    minLength: USER_SNS_LENGTH.MIN,
+    maxLength: USER_SNS_LENGTH.MAX,
   })
   sns: string;
 
diff --git a/src/users/dtos/update-user-intro-dto.ts b/src/users/dtos/update-user-intro-dto.ts
index 0ea6f806..b1e02b7a 100644
--- a/src/users/dtos/update-user-intro-dto.ts
+++ b/src/users/dtos/update-user-intro-dto.ts
@@ -1,54 +1,75 @@
-import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
-import { IsBoolean, IsNumber, IsOptional, IsString } from 'class-validator';
+import { ApiPropertyOptional } from '@nestjs/swagger';
+import { IsPositiveInt } from '@src/common/decorators/validators/is-positive-int.decorator';
+import {
+  USER_CAREER_LENGTH,
+  USER_CUSTOM_CATEGORY_LENGTH,
+  USER_DETAIL_LENGTH,
+  USER_PORTFOLIO_LENGTH,
+  USER_SHORT_INTRO_LENGTH,
+  USER_SNS_LENGTH,
+} from '@src/users/constants/user.constant';
+import { IsBoolean, IsOptional, Length } from 'class-validator';
 
 export class UpdateUserIntroDTO {
   @ApiPropertyOptional({
     example: '안녕하세요',
     description: '한 줄 소개',
+    minLength: USER_SHORT_INTRO_LENGTH.MIN,
+    maxLength: USER_SHORT_INTRO_LENGTH.MAX,
   })
   @IsOptional()
-  @IsString()
+  @Length(USER_SHORT_INTRO_LENGTH.MIN, USER_SHORT_INTRO_LENGTH.MAX)
   shortIntro?: string;
 
   @ApiPropertyOptional({
     example: '숨쉬기 경력 20년',
     description: '경력',
+    minLength: USER_CAREER_LENGTH.MIN,
+    maxLength: USER_CAREER_LENGTH.MAX,
   })
   @IsOptional()
-  @IsString()
+  @Length(USER_CAREER_LENGTH.MIN, USER_CAREER_LENGTH.MAX)
   career?: string;
 
   @ApiPropertyOptional({
     example: '코로 숨쉬기, 입으로 숨쉬기',
     description: '커스텀 카테고리',
+    minLength: USER_CUSTOM_CATEGORY_LENGTH.MIN,
+    maxLength: USER_CUSTOM_CATEGORY_LENGTH.MAX,
   })
   @IsOptional()
-  @IsString()
+  @Length(USER_CUSTOM_CATEGORY_LENGTH.MIN, USER_CUSTOM_CATEGORY_LENGTH.MAX)
   customCategory?: string;
 
   @ApiPropertyOptional({
     example:
       '안녕하세요. 저는 트위치에서 방송을 하고 있는 스트리머 케인입니다.',
     description: '상세 소개(옵션)',
+    minLength: USER_DETAIL_LENGTH.MIN,
+    maxLength: USER_DETAIL_LENGTH.MAX,
   })
   @IsOptional()
-  @IsString()
+  @Length(USER_DETAIL_LENGTH.MIN, USER_DETAIL_LENGTH.MAX)
   detail?: string;
 
   @ApiPropertyOptional({
     example: 'https://www.naver.com',
     description: '포트폴리오 링크',
+    minLength: USER_PORTFOLIO_LENGTH.MIN,
+    maxLength: USER_PORTFOLIO_LENGTH.MAX,
   })
   @IsOptional()
-  @IsString()
+  @Length(USER_PORTFOLIO_LENGTH.MIN, USER_PORTFOLIO_LENGTH.MAX)
   portfolio?: string;
 
   @ApiPropertyOptional({
     example: 'https://www.naver.com',
     description: 'sns 링크',
+    minLength: USER_SNS_LENGTH.MIN,
+    maxLength: USER_SNS_LENGTH.MAX,
   })
   @IsOptional()
-  @IsString()
+  @Length(USER_SNS_LENGTH.MIN, USER_SNS_LENGTH.MAX)
   sns?: string;
 
   @ApiPropertyOptional({
@@ -56,7 +77,7 @@ export class UpdateUserIntroDTO {
     description: '희망 카테고리 id',
   })
   @IsOptional()
-  @IsNumber()
+  @IsPositiveInt()
   hopeCategoryId?: number;
 
   @ApiPropertyOptional({
@@ -64,7 +85,7 @@ export class UpdateUserIntroDTO {
     description: '활동 카테고리 id',
   })
   @IsOptional()
-  @IsNumber()
+  @IsPositiveInt()
   activityCategoryId?: number;
 
   @ApiPropertyOptional({
diff --git a/src/users/dtos/user-info.dto.ts b/src/users/dtos/user-info.dto.ts
index 98ac7e43..8f0b1936 100644
--- a/src/users/dtos/user-info.dto.ts
+++ b/src/users/dtos/user-info.dto.ts
@@ -4,6 +4,10 @@ import { UserStatus } from '@src/users/constants/user-status.enum';
 import { UserProvider } from '@src/auth/enums/user-provider.enum';
 import { UserRole } from '@src/users/constants/user-role.enum';
 import { User } from '@src/entities/User';
+import {
+  USER_EMAIL_LENGTH,
+  USER_NAME_LENGTH,
+} from '@src/users/constants/user.constant';
 
 export class UserInfoDto
   implements
@@ -33,16 +37,23 @@ export class UserInfoDto
 {
   @ApiProperty({
     description: '유저 아이디',
+    format: 'integer',
+    minLength: 1,
   })
   id: number;
 
   @ApiProperty({
-    description: '이름',
+    description: '유저 이름',
+    minLength: USER_NAME_LENGTH.MIN,
+    maxLength: USER_NAME_LENGTH.MAX,
   })
   name: string;
 
   @ApiProperty({
-    description: '이메일',
+    description: '유저 이메일',
+    format: 'email',
+    minLength: USER_EMAIL_LENGTH.MIN,
+    maxLength: USER_EMAIL_LENGTH.MAX,
   })
   email: string;
 
@@ -59,22 +70,29 @@ export class UserInfoDto
 
   @ApiProperty({
     description: '희망 카테고리 id',
+    format: 'integer',
+    minimum: 1,
   })
   hopeCategoryId: number;
 
   @ApiProperty({
     description: '활동 카테고리 id',
+    format: 'integer',
+    minimum: 1,
   })
   activityCategoryId: number;
 
   @ApiProperty({
-    description: '점수',
+    description: '등급',
+    format: 'integer',
+    minimum: 1,
   })
   rank: number;
 
   @ApiProperty({
     description: '휴대폰 인증 여부',
     nullable: true,
+    type: () => String,
   })
   phone: string | null;