diff --git a/src/main/java/com/example/bigbrotherbe/domain/event/entity/Event.java b/src/main/java/com/example/bigbrotherbe/domain/event/entity/Event.java
index 01ea984..ee5f0cc 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/event/entity/Event.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/event/entity/Event.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.domain.event.entity;
 
-import com.example.bigbrotherbe.domain.BaseTimeEntity;
+import com.example.bigbrotherbe.global.entity.BaseTimeEntity;
 import com.example.bigbrotherbe.global.file.entity.File;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/faq/entity/FAQ.java b/src/main/java/com/example/bigbrotherbe/domain/faq/entity/FAQ.java
index 71b9521..f203238 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/faq/entity/FAQ.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/faq/entity/FAQ.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.domain.faq.entity;
 
-import com.example.bigbrotherbe.domain.BaseTimeEntity;
+import com.example.bigbrotherbe.global.entity.BaseTimeEntity;
 import com.example.bigbrotherbe.global.file.entity.File;
 import jakarta.persistence.*;
 import lombok.*;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/meetings/entity/Meetings.java b/src/main/java/com/example/bigbrotherbe/domain/meetings/entity/Meetings.java
index c073472..68e1717 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/meetings/entity/Meetings.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/meetings/entity/Meetings.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.domain.meetings.entity;
 
-import com.example.bigbrotherbe.domain.BaseTimeEntity;
+import com.example.bigbrotherbe.global.entity.BaseTimeEntity;
 import com.example.bigbrotherbe.global.file.entity.File;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberController.java b/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberController.java
index d89b171..7ed3be0 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberController.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberController.java
@@ -8,8 +8,8 @@
 import com.example.bigbrotherbe.domain.member.dto.response.MemberInfoResponse;
 import com.example.bigbrotherbe.domain.member.dto.response.MemberResponse;
 import com.example.bigbrotherbe.domain.member.dto.AffiliationListDto;
-import com.example.bigbrotherbe.global.email.entity.EmailRequest;
-import com.example.bigbrotherbe.global.email.entity.EmailVerificationResult;
+import com.example.bigbrotherbe.global.email.dto.EmailRequest;
+import com.example.bigbrotherbe.global.email.dto.EmailVerificationResult;
 import com.example.bigbrotherbe.global.auth.jwt.dto.response.JwtToken;
 import com.example.bigbrotherbe.global.auth.jwt.dto.TokenDto;
 import com.example.bigbrotherbe.global.common.config.SecurityConfig;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberControllerImpl.java b/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberControllerImpl.java
index 466b9ae..04f2ed5 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberControllerImpl.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/member/controller/MemberControllerImpl.java
@@ -9,8 +9,8 @@
 import com.example.bigbrotherbe.domain.member.dto.response.MemberInfoResponse;
 import com.example.bigbrotherbe.domain.member.dto.response.MemberResponse;
 import com.example.bigbrotherbe.domain.member.dto.AffiliationListDto;
-import com.example.bigbrotherbe.global.email.entity.EmailRequest;
-import com.example.bigbrotherbe.global.email.entity.EmailVerificationResult;
+import com.example.bigbrotherbe.global.email.dto.EmailRequest;
+import com.example.bigbrotherbe.global.email.dto.EmailVerificationResult;
 import com.example.bigbrotherbe.global.email.component.MailService;
 import com.example.bigbrotherbe.global.common.exception.response.ApiResponse;
 import com.example.bigbrotherbe.global.auth.jwt.dto.response.JwtToken;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/notice/entity/Notice.java b/src/main/java/com/example/bigbrotherbe/domain/notice/entity/Notice.java
index ecb524d..1218cc3 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/notice/entity/Notice.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/notice/entity/Notice.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.domain.notice.entity;
 
-import com.example.bigbrotherbe.domain.BaseTimeEntity;
+import com.example.bigbrotherbe.global.entity.BaseTimeEntity;
 import com.example.bigbrotherbe.global.file.entity.File;
 import jakarta.persistence.*;
 import lombok.*;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/rule/entity/Rule.java b/src/main/java/com/example/bigbrotherbe/domain/rule/entity/Rule.java
index 38c392c..b31d7a4 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/rule/entity/Rule.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/rule/entity/Rule.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.domain.rule.entity;
 
-import com.example.bigbrotherbe.domain.BaseTimeEntity;
+import com.example.bigbrotherbe.global.entity.BaseTimeEntity;
 import com.example.bigbrotherbe.global.file.entity.File;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/transactions/entity/Transactions.java b/src/main/java/com/example/bigbrotherbe/domain/transactions/entity/Transactions.java
index c3083c9..63f2536 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/transactions/entity/Transactions.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/transactions/entity/Transactions.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.domain.transactions.entity;
 
-import com.example.bigbrotherbe.domain.BaseTimeEntity;
+import com.example.bigbrotherbe.global.entity.BaseTimeEntity;
 
 import com.example.bigbrotherbe.global.file.entity.File;
 import jakarta.persistence.*;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/transactions/service/TransactionsServiceImpl.java b/src/main/java/com/example/bigbrotherbe/domain/transactions/service/TransactionsServiceImpl.java
index 2f2a070..e5bf352 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/transactions/service/TransactionsServiceImpl.java
+++ b/src/main/java/com/example/bigbrotherbe/domain/transactions/service/TransactionsServiceImpl.java
@@ -12,7 +12,7 @@
 import com.example.bigbrotherbe.global.file.enums.FileType;
 import com.example.bigbrotherbe.global.file.service.FileService;
 import com.example.bigbrotherbe.global.auth.util.AuthUtil;
-import com.example.bigbrotherbe.global.ocr.dto.OcrDTO;
+import com.example.bigbrotherbe.global.ocr.dto.OcrDto;
 import com.example.bigbrotherbe.global.ocr.service.OcrService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -54,7 +54,7 @@ public void register(MultipartFile multipartFile, Long affiliationId) {
             throw new BusinessException(NOT_COUNCIL_MEMBER);
         }
 
-        OcrDTO ocrDTO = ocrService.extractText(multipartFile);
+        OcrDto ocrDTO = ocrService.extractText(multipartFile);
 
         List<String[]> parseTransactions = ocrDTO.getParseTransactions();
         String parseAccountNumber = ocrDTO.getParseAccountNumber();
diff --git a/src/main/java/com/example/bigbrotherbe/global/email/EmailConfig.java b/src/main/java/com/example/bigbrotherbe/global/common/config/EmailConfig.java
similarity index 97%
rename from src/main/java/com/example/bigbrotherbe/global/email/EmailConfig.java
rename to src/main/java/com/example/bigbrotherbe/global/common/config/EmailConfig.java
index 39db927..0a1921b 100644
--- a/src/main/java/com/example/bigbrotherbe/global/email/EmailConfig.java
+++ b/src/main/java/com/example/bigbrotherbe/global/common/config/EmailConfig.java
@@ -1,4 +1,4 @@
-package com.example.bigbrotherbe.global.email;
+package com.example.bigbrotherbe.global.common.config;
 
 import java.util.Properties;
 import org.springframework.beans.factory.annotation.Value;
diff --git a/src/main/java/com/example/bigbrotherbe/global/email/component/MailChecker.java b/src/main/java/com/example/bigbrotherbe/global/email/component/MailChecker.java
index cdac1fb..88d7bd3 100644
--- a/src/main/java/com/example/bigbrotherbe/global/email/component/MailChecker.java
+++ b/src/main/java/com/example/bigbrotherbe/global/email/component/MailChecker.java
@@ -2,7 +2,7 @@
 
 
 import com.example.bigbrotherbe.domain.member.component.MemberLoader;
-import com.example.bigbrotherbe.global.email.entity.EmailVerificationResult;
+import com.example.bigbrotherbe.global.email.dto.EmailVerificationResult;
 import com.example.bigbrotherbe.global.common.exception.BusinessException;
 import com.example.bigbrotherbe.global.common.exception.enums.ErrorCode;
 import lombok.RequiredArgsConstructor;
diff --git a/src/main/java/com/example/bigbrotherbe/global/email/component/MailService.java b/src/main/java/com/example/bigbrotherbe/global/email/component/MailService.java
index 290ab3d..38e5f12 100644
--- a/src/main/java/com/example/bigbrotherbe/global/email/component/MailService.java
+++ b/src/main/java/com/example/bigbrotherbe/global/email/component/MailService.java
@@ -3,7 +3,7 @@
 import com.example.bigbrotherbe.domain.member.entity.EMailVerification;
 import com.example.bigbrotherbe.domain.member.repository.MailRepository;
 import com.example.bigbrotherbe.global.email.entity.Email;
-import com.example.bigbrotherbe.global.email.entity.EmailVerificationResult;
+import com.example.bigbrotherbe.global.email.dto.EmailVerificationResult;
 import com.example.bigbrotherbe.global.common.exception.BusinessException;
 import com.example.bigbrotherbe.global.common.exception.enums.ErrorCode;
 import java.time.Duration;
diff --git a/src/main/java/com/example/bigbrotherbe/global/email/entity/EmailRequest.java b/src/main/java/com/example/bigbrotherbe/global/email/dto/EmailRequest.java
similarity index 61%
rename from src/main/java/com/example/bigbrotherbe/global/email/entity/EmailRequest.java
rename to src/main/java/com/example/bigbrotherbe/global/email/dto/EmailRequest.java
index 7c481fc..4498375 100644
--- a/src/main/java/com/example/bigbrotherbe/global/email/entity/EmailRequest.java
+++ b/src/main/java/com/example/bigbrotherbe/global/email/dto/EmailRequest.java
@@ -1,4 +1,4 @@
-package com.example.bigbrotherbe.global.email.entity;
+package com.example.bigbrotherbe.global.email.dto;
 
 import lombok.Getter;
 
diff --git a/src/main/java/com/example/bigbrotherbe/global/email/entity/EmailVerificationResult.java b/src/main/java/com/example/bigbrotherbe/global/email/dto/EmailVerificationResult.java
similarity index 88%
rename from src/main/java/com/example/bigbrotherbe/global/email/entity/EmailVerificationResult.java
rename to src/main/java/com/example/bigbrotherbe/global/email/dto/EmailVerificationResult.java
index 1d3d9e7..d0e727f 100644
--- a/src/main/java/com/example/bigbrotherbe/global/email/entity/EmailVerificationResult.java
+++ b/src/main/java/com/example/bigbrotherbe/global/email/dto/EmailVerificationResult.java
@@ -1,4 +1,4 @@
-package com.example.bigbrotherbe.global.email.entity;
+package com.example.bigbrotherbe.global.email.dto;
 
 
 import lombok.AllArgsConstructor;
diff --git a/src/main/java/com/example/bigbrotherbe/domain/BaseTimeEntity.java b/src/main/java/com/example/bigbrotherbe/global/entity/BaseTimeEntity.java
similarity index 92%
rename from src/main/java/com/example/bigbrotherbe/domain/BaseTimeEntity.java
rename to src/main/java/com/example/bigbrotherbe/global/entity/BaseTimeEntity.java
index 328c951..fe963de 100644
--- a/src/main/java/com/example/bigbrotherbe/domain/BaseTimeEntity.java
+++ b/src/main/java/com/example/bigbrotherbe/global/entity/BaseTimeEntity.java
@@ -1,4 +1,4 @@
-package com.example.bigbrotherbe.domain;
+package com.example.bigbrotherbe.global.entity;
 
 import jakarta.persistence.EntityListeners;
 import jakarta.persistence.MappedSuperclass;
diff --git a/src/main/java/com/example/bigbrotherbe/global/file/entity/File.java b/src/main/java/com/example/bigbrotherbe/global/file/entity/File.java
index 43117ef..a8f6a90 100644
--- a/src/main/java/com/example/bigbrotherbe/global/file/entity/File.java
+++ b/src/main/java/com/example/bigbrotherbe/global/file/entity/File.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.global.file.entity;
 
-import com.example.bigbrotherbe.domain.BaseTimeEntity;
+import com.example.bigbrotherbe.global.entity.BaseTimeEntity;
 import com.example.bigbrotherbe.domain.campusNotice.entity.CampusNotice;
 import com.example.bigbrotherbe.domain.event.entity.Event;
 import com.example.bigbrotherbe.domain.faq.entity.FAQ;
@@ -10,7 +10,6 @@
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
 import lombok.*;
-import org.checkerframework.checker.units.qual.A;
 
 @Entity
 @Getter
diff --git a/src/main/java/com/example/bigbrotherbe/global/ocr/dto/OcrDTO.java b/src/main/java/com/example/bigbrotherbe/global/ocr/dto/OcrDto.java
similarity index 79%
rename from src/main/java/com/example/bigbrotherbe/global/ocr/dto/OcrDTO.java
rename to src/main/java/com/example/bigbrotherbe/global/ocr/dto/OcrDto.java
index 125d26e..ece4a12 100644
--- a/src/main/java/com/example/bigbrotherbe/global/ocr/dto/OcrDTO.java
+++ b/src/main/java/com/example/bigbrotherbe/global/ocr/dto/OcrDto.java
@@ -9,12 +9,12 @@
 @Getter
 @Builder
 @AllArgsConstructor
-public class OcrDTO {
+public class OcrDto {
     private List<String[]> parseTransactions;
     private String parseAccountNumber;
 
-    public static OcrDTO fromOcrResponse(List<String[]> parseTransactions, String parseAccountNumber) {
-        return OcrDTO.builder()
+    public static OcrDto fromOcrResponse(List<String[]> parseTransactions, String parseAccountNumber) {
+        return OcrDto.builder()
                 .parseTransactions(parseTransactions)
                 .parseAccountNumber(parseAccountNumber)
                 .build();
diff --git a/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrService.java b/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrService.java
index 6b3ac8c..337fd51 100644
--- a/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrService.java
+++ b/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrService.java
@@ -1,8 +1,8 @@
 package com.example.bigbrotherbe.global.ocr.service;
 
-import com.example.bigbrotherbe.global.ocr.dto.OcrDTO;
+import com.example.bigbrotherbe.global.ocr.dto.OcrDto;
 import org.springframework.web.multipart.MultipartFile;
 
 public interface OcrService {
-    OcrDTO extractText(MultipartFile multipartFile);
+    OcrDto extractText(MultipartFile multipartFile);
 }
diff --git a/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrServiceImpl.java b/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrServiceImpl.java
index 399a9ad..29b43b5 100644
--- a/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrServiceImpl.java
+++ b/src/main/java/com/example/bigbrotherbe/global/ocr/service/OcrServiceImpl.java
@@ -1,6 +1,6 @@
 package com.example.bigbrotherbe.global.ocr.service;
 
-import com.example.bigbrotherbe.global.ocr.dto.OcrDTO;
+import com.example.bigbrotherbe.global.ocr.dto.OcrDto;
 import com.example.bigbrotherbe.global.ocr.util.OcrUtil;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -15,7 +15,7 @@ public class OcrServiceImpl implements OcrService {
     private final OcrUtil ocrUtil;
 
     @Override
-    public OcrDTO extractText(MultipartFile multipartFile) {
+    public OcrDto extractText(MultipartFile multipartFile) {
         // ocr로 모든 text 추출한 거
         String extractedText = ocrUtil.extractTextFromPDF(multipartFile);
 
@@ -23,6 +23,6 @@ public OcrDTO extractText(MultipartFile multipartFile) {
         String parseAccountNumber = ocrUtil.parseAccountNumber(extractedText);
 
         // parsing 가공해서 응답
-        return OcrDTO.fromOcrResponse(parseTransactions, parseAccountNumber);
+        return OcrDto.fromOcrResponse(parseTransactions, parseAccountNumber);
     }
 }