diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/controller/.dummy b/src/main/java/com/trendithon/timetris/domain/mainpage/controller/.dummy
deleted file mode 100644
index e69de29..0000000
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/domain/Category.java b/src/main/java/com/trendithon/timetris/domain/mainpage/domain/Category.java
index 758b154..a8382d7 100644
--- a/src/main/java/com/trendithon/timetris/domain/mainpage/domain/Category.java
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/domain/Category.java
@@ -1,6 +1,7 @@
 package com.trendithon.timetris.domain.mainpage.domain;
 
 import com.trendithon.timetris.domain.login.domain.User;
+import com.trendithon.timetris.domain.mainpage.dto.CategoryCreateDTO;
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
@@ -21,4 +22,15 @@ public class Category {
     @JoinColumn(name = "userId")
     private User user;
 
+    public Category(CategoryCreateDTO categoryCreateDTO, User user){
+        this.name = categoryCreateDTO.getName();
+        this.colorCode = categoryCreateDTO.getColorCode();
+        this.user = user;
+    }
+
+    public void updateCategory(String name, String colorCode){
+        this.name = name;
+        this.colorCode = colorCode;
+    }
+
 }
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/CategoryCreateDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/CategoryCreateDTO.java
new file mode 100644
index 0000000..d4e34d4
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/CategoryCreateDTO.java
@@ -0,0 +1,16 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.login.domain.User;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@AllArgsConstructor @NoArgsConstructor
+public class CategoryCreateDTO {
+
+    private String name;
+    private String colorCode;
+    private User user;
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/CategoryViewDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/CategoryViewDTO.java
new file mode 100644
index 0000000..f260046
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/CategoryViewDTO.java
@@ -0,0 +1,14 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@AllArgsConstructor @NoArgsConstructor
+public class CategoryViewDTO {
+
+    private String name;
+    private String colorCode;
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/DoCreateDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/DoCreateDTO.java
new file mode 100644
index 0000000..d43aa75
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/DoCreateDTO.java
@@ -0,0 +1,21 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.mainpage.domain.Category;
+import com.trendithon.timetris.domain.mainpage.domain.UserDate;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalTime;
+
+@Getter
+@AllArgsConstructor @NoArgsConstructor
+public class DoCreateDTO {
+
+    private String title;
+    private LocalTime startTime;
+    private LocalTime endTime;
+    private Category category;
+    private UserDate userDate;
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/DoViewDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/DoViewDTO.java
new file mode 100644
index 0000000..395f88c
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/DoViewDTO.java
@@ -0,0 +1,33 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.mainpage.domain.Category;
+import com.trendithon.timetris.domain.mainpage.domain.Date;
+import com.trendithon.timetris.domain.mainpage.domain.Do;
+import com.trendithon.timetris.domain.mainpage.domain.UserDate;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalTime;
+
+@Getter
+@Builder
+@AllArgsConstructor @NoArgsConstructor
+public class DoViewDTO {
+
+    private String title;
+    private LocalTime startTime;
+    private LocalTime endTime;
+    private Category category;
+
+    public static DoViewDTO of(Do does){
+        return DoViewDTO.builder()
+                .title(does.getTitle())
+                .startTime(does.getStartTime())
+                .endTime(does.getEndTime())
+                .category(does.getCategory())
+                .build();
+    }
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/MainPageDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/MainPageDTO.java
new file mode 100644
index 0000000..3ff4ba6
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/MainPageDTO.java
@@ -0,0 +1,36 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.mainpage.domain.Do;
+import com.trendithon.timetris.domain.mainpage.domain.Plan;
+import com.trendithon.timetris.domain.mainpage.domain.See;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Getter
+@AllArgsConstructor @NoArgsConstructor
+public class MainPageDTO {
+
+    List<PlanViewDTO> planViewDTOList;
+    List<DoViewDTO> doViewDTOList;
+    List<SeeViewDTO> seeViewDTO;
+
+    public static MainPageDTO from(List<Plan> planList, List<Do> doList, List<See> seeList){
+        List<PlanViewDTO> planViewDTOS = planList.stream()
+                .map(PlanViewDTO::of)
+                .toList();
+        List<DoViewDTO> doViewDTOS = doList.stream()
+                .map(DoViewDTO::of)
+                .toList();
+        List<SeeViewDTO> seeViewDTO1 = seeList.stream()
+                .map(SeeViewDTO::of)
+                .toList();
+
+        return new MainPageDTO(planViewDTOS, doViewDTOS, seeViewDTO1);
+
+    }
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/PlanCreateDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/PlanCreateDTO.java
new file mode 100644
index 0000000..cc3d331
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/PlanCreateDTO.java
@@ -0,0 +1,22 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.mainpage.domain.Category;
+import com.trendithon.timetris.domain.mainpage.domain.UserDate;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalTime;
+
+@Getter
+@AllArgsConstructor @NoArgsConstructor
+public class PlanCreateDTO {
+
+    private String title;
+    private LocalTime startTime;
+    private LocalTime endTime;
+    private boolean status;
+    private Category category;
+    private UserDate userDate;
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/PlanViewDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/PlanViewDTO.java
new file mode 100644
index 0000000..5ea4c26
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/PlanViewDTO.java
@@ -0,0 +1,34 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.mainpage.domain.Category;
+import com.trendithon.timetris.domain.mainpage.domain.Plan;
+import com.trendithon.timetris.domain.mainpage.domain.UserDate;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalTime;
+
+@Getter
+@Builder
+@AllArgsConstructor @NoArgsConstructor
+public class PlanViewDTO {
+
+    private String title;
+    private LocalTime startTime;
+    private LocalTime endTime;
+    private boolean status;
+    private Category category;
+
+    public static PlanViewDTO of(Plan plan){
+        return PlanViewDTO.builder()
+                .title(plan.getTitle())
+                .startTime(plan.getStartTime())
+                .endTime(plan.getEndTime())
+                .status(plan.isStatus())
+                .category(plan.getCategory())
+                .build();
+    }
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/SeeCreateDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/SeeCreateDTO.java
new file mode 100644
index 0000000..a7a5ce8
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/SeeCreateDTO.java
@@ -0,0 +1,15 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.mainpage.domain.UserDate;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@AllArgsConstructor @NoArgsConstructor
+public class SeeCreateDTO {
+
+    private String content;
+    private UserDate userDate;
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/dto/SeeViewDTO.java b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/SeeViewDTO.java
new file mode 100644
index 0000000..e0c6f08
--- /dev/null
+++ b/src/main/java/com/trendithon/timetris/domain/mainpage/dto/SeeViewDTO.java
@@ -0,0 +1,25 @@
+package com.trendithon.timetris.domain.mainpage.dto;
+
+import com.trendithon.timetris.domain.mainpage.domain.Date;
+import com.trendithon.timetris.domain.mainpage.domain.See;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.Optional;
+
+@Getter
+@Builder
+@AllArgsConstructor @NoArgsConstructor
+public class SeeViewDTO {
+
+    private String content;
+
+    public static SeeViewDTO of(See see){
+        return SeeViewDTO.builder()
+                .content(see.getContent())
+                .build();
+    }
+
+}
diff --git a/src/main/java/com/trendithon/timetris/domain/mainpage/exception/.dummy b/src/main/java/com/trendithon/timetris/domain/mainpage/exception/.dummy
deleted file mode 100644
index e69de29..0000000
diff --git a/src/main/java/com/trendithon/timetris/global/exception/enums/ErrorStatus.java b/src/main/java/com/trendithon/timetris/global/exception/enums/ErrorStatus.java
index 6162450..10f3c48 100644
--- a/src/main/java/com/trendithon/timetris/global/exception/enums/ErrorStatus.java
+++ b/src/main/java/com/trendithon/timetris/global/exception/enums/ErrorStatus.java
@@ -14,7 +14,13 @@ public enum ErrorStatus {
     INVALID_TYPE_ERROR(HttpStatus.BAD_REQUEST, "COMMON400", "올바르지 않은 타입입니다."),
     ILLEGAL_ARGUMENT_ERROR(HttpStatus.BAD_REQUEST, "COMMON400", "필수 파라미터가 없습니다"),
     INTERNAL_SERVER_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "COMMON500", "서버 오류가 발생했습니다. 잠시 후 다시 시도해주세요."),
-    INVALID_HTTP_METHOD(HttpStatus.METHOD_NOT_ALLOWED, "COMMON400", "잘못된 Http Method 요청입니다.");
+    INVALID_HTTP_METHOD(HttpStatus.METHOD_NOT_ALLOWED, "COMMON400", "잘못된 Http Method 요청입니다."),
+    NO_PERMISSION_ERROR(HttpStatus.BAD_REQUEST, "COMMOM400", "해당 유저에게 수정/삭제 권한이 없습니다."),
+    USER_NOT_FOUND_ERROR(HttpStatus.NOT_FOUND, "COMMOM400", "해당 유저를 찾을 수 없습니다."),
+    CATEGORY_NOT_FOUND_ERROR(HttpStatus.NOT_FOUND, "COMMOM400", "해당 카테고리를 찾을 수 없습니다."),
+    PLAN_NOT_FOUND_ERROR(HttpStatus.NOT_FOUND, "COMMOM400", "해당 plan을 찾을 수 없습니다."),
+    DO_NOT_FOUND_ERROR(HttpStatus.NOT_FOUND, "COMMOM400", "해당 do를 찾을 수 없습니다."),
+    SEE_NOT_FOUND_ERROR(HttpStatus.NOT_FOUND, "COMMOM400", "해당 see를 찾을 수 없습니다."),;
 
 
     private final HttpStatus httpStatus;