diff --git a/src/main/java/com/example/FixLog/FixLogApplication.java b/src/main/java/com/example/fixlog/FixLogApplication.java
similarity index 90%
rename from src/main/java/com/example/FixLog/FixLogApplication.java
rename to src/main/java/com/example/fixlog/FixLogApplication.java
index e8c3276..5f2e48b 100644
--- a/src/main/java/com/example/FixLog/FixLogApplication.java
+++ b/src/main/java/com/example/fixlog/FixLogApplication.java
@@ -1,4 +1,4 @@
-package com.example.FixLog;
+package com.example.fixlog;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
diff --git a/src/main/java/com/example/fixlog/domain/bookmark/Bookmark.java b/src/main/java/com/example/fixlog/domain/bookmark/Bookmark.java
new file mode 100644
index 0000000..13a6a50
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/bookmark/Bookmark.java
@@ -0,0 +1,29 @@
+package com.example.fixlog.domain.bookmark;
+
+import com.example.fixlog.domain.member.Member;
+import com.example.fixlog.domain.post.Post;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Bookmark {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name="bookmarkId")
+    private Long id;
+
+    @ManyToOne
+    @JoinColumn(name = "userId")
+    private Member member;
+
+    @ManyToOne
+    @JoinColumn(name = "postId")
+    private Post post;
+}
diff --git a/src/main/java/com/example/fixlog/domain/bookmark/BookmarkTag.java b/src/main/java/com/example/fixlog/domain/bookmark/BookmarkTag.java
new file mode 100644
index 0000000..fe8f59a
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/bookmark/BookmarkTag.java
@@ -0,0 +1,26 @@
+package com.example.fixlog.domain.bookmark;
+
+import com.example.fixlog.domain.tag.Tag;
+import com.example.fixlog.domain.tag.TagCategory;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class BookmarkTag {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "bookmarkTagId",nullable = false)
+    private Long id;
+
+    @Column(length = 20, nullable = false)
+    private String tagName;
+
+    @Enumerated(EnumType.STRING)
+    private TagCategory tagCategory;
+}
diff --git a/src/main/java/com/example/fixlog/domain/bookmark/BookmarkTagMap.java b/src/main/java/com/example/fixlog/domain/bookmark/BookmarkTagMap.java
new file mode 100644
index 0000000..5064ea0
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/bookmark/BookmarkTagMap.java
@@ -0,0 +1,26 @@
+package com.example.fixlog.domain.bookmark;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class BookmarkTagMap {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "mapId", nullable = false)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "bookmarkId", nullable = false)
+    private Bookmark bookmark;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "bookmarkTagId", nullable = false)
+    private BookmarkTag bookmarkTag;
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/fixlog/domain/follow/Follow.java b/src/main/java/com/example/fixlog/domain/follow/Follow.java
new file mode 100644
index 0000000..dcbe508
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/follow/Follow.java
@@ -0,0 +1,26 @@
+package com.example.fixlog.domain.follow;
+
+import com.example.fixlog.domain.member.Member;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Follow {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "followId")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "followerId", nullable = false)
+    private Member follower;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "followingId", nullable = false)
+    private Member following;
+}
diff --git a/src/main/java/com/example/fixlog/domain/fork/Fork.java b/src/main/java/com/example/fixlog/domain/fork/Fork.java
new file mode 100644
index 0000000..aa0f43b
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/fork/Fork.java
@@ -0,0 +1,31 @@
+package com.example.fixlog.domain.fork;
+
+import com.example.fixlog.domain.member.Member;
+import com.example.fixlog.domain.post.Post;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Fork {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "forkId")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "userId", nullable = false)
+    private Member member;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "postId", nullable = false)
+    private Post originalPost;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "forkPostId", nullable = false)
+    private Post forkedPost;
+}
diff --git a/src/main/java/com/example/fixlog/domain/like/PostLike.java b/src/main/java/com/example/fixlog/domain/like/PostLike.java
new file mode 100644
index 0000000..c2cf664
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/like/PostLike.java
@@ -0,0 +1,27 @@
+package com.example.fixlog.domain.like;
+
+import com.example.fixlog.domain.member.Member;
+import com.example.fixlog.domain.post.Post;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class PostLike {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "likeId", nullable = false)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "userId", nullable = false)
+    private Member member;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "postId", nullable = false)
+    private Post post;
+}
diff --git a/src/main/java/com/example/fixlog/domain/member/Member.java b/src/main/java/com/example/fixlog/domain/member/Member.java
new file mode 100644
index 0000000..8b09553
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/member/Member.java
@@ -0,0 +1,63 @@
+package com.example.fixlog.domain.member;
+
+import com.example.fixlog.domain.post.Post;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@EntityListeners(AuditingEntityListener.class)
+public class Member {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "userId")
+    private Long id;
+
+    @Column(nullable = false)
+    private String email;
+
+    @Column(nullable = false)
+    private String password;
+
+    @Column(nullable = false)
+    private String nickname;
+
+    @Column(nullable = false)
+    private Boolean isDeleted = false;
+
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    private SocialType socialType = SocialType.EMAIL;
+
+    @CreatedDate
+    private LocalDateTime createdAt;
+
+    @LastModifiedDate
+    private LocalDateTime updatedAt;
+
+    @OneToMany(mappedBy = "member", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<Post> posts = new ArrayList<>();
+
+    // Member 객체를 정적 팩토리 방식으로 생성하는 메서드
+    // Creates a Member object using a static factory method
+    public static Member of(String email, String password, String nickname, SocialType socialType) {
+        Member member = new Member();
+        member.email = email;
+        member.password = password;
+        member.nickname = nickname;
+        member.socialType = socialType;
+        member.isDeleted = false;
+        return member;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/fixlog/domain/member/SocialType.java b/src/main/java/com/example/fixlog/domain/member/SocialType.java
new file mode 100644
index 0000000..74eaae8
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/member/SocialType.java
@@ -0,0 +1,6 @@
+package com.example.fixlog.domain.member;
+
+public enum SocialType {
+    EMAIL,
+    GITHUB
+}
diff --git a/src/main/java/com/example/fixlog/domain/post/Post.java b/src/main/java/com/example/fixlog/domain/post/Post.java
new file mode 100644
index 0000000..0ec0501
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/post/Post.java
@@ -0,0 +1,38 @@
+package com.example.fixlog.domain.post;
+
+import com.example.fixlog.domain.member.Member;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Post {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "postId", nullable = false)
+    private Long id;
+
+    @Column(length = 20, nullable = false)
+    private String title;
+
+    @Column(columnDefinition = "TEXT", nullable = false)
+    private String content;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "userId", nullable = false)
+    private Member member;
+
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+
+    @OneToMany(mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<PostImage> postImages = new ArrayList<>();
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/fixlog/domain/post/PostImage.java b/src/main/java/com/example/fixlog/domain/post/PostImage.java
new file mode 100644
index 0000000..3c982b0
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/post/PostImage.java
@@ -0,0 +1,24 @@
+package com.example.fixlog.domain.post;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class PostImage {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "postImageId",nullable = false)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "postId", nullable = false)
+    private Post post;
+
+    @Column(columnDefinition = "TEXT", nullable = false)
+    private String postImageUrl;
+}
diff --git a/src/main/java/com/example/fixlog/domain/post/PostTag.java b/src/main/java/com/example/fixlog/domain/post/PostTag.java
new file mode 100644
index 0000000..b3dc0ec
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/post/PostTag.java
@@ -0,0 +1,26 @@
+package com.example.fixlog.domain.post;
+
+import com.example.fixlog.domain.tag.Tag;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class PostTag {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "postTagId",nullable = false)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "postId", nullable = false)
+    private Post post;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "tagId", nullable = false)
+    private Tag tag;
+}
diff --git a/src/main/java/com/example/fixlog/domain/tag/Tag.java b/src/main/java/com/example/fixlog/domain/tag/Tag.java
new file mode 100644
index 0000000..f48360a
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/tag/Tag.java
@@ -0,0 +1,23 @@
+package com.example.fixlog.domain.tag;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Tag {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "tagId",nullable = false)
+    private Long id;
+
+    @Enumerated(EnumType.STRING)
+    private TagCategory tagCategory;
+
+    @Column(length = 20, nullable = false)
+    private String tag_name;
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/fixlog/domain/tag/TagCategory.java b/src/main/java/com/example/fixlog/domain/tag/TagCategory.java
new file mode 100644
index 0000000..ba9964d
--- /dev/null
+++ b/src/main/java/com/example/fixlog/domain/tag/TagCategory.java
@@ -0,0 +1,7 @@
+package com.example.fixlog.domain.tag;
+
+public enum TagCategory {
+    STYLE,
+    CONCEPT,
+    ETC
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 80e40c5..378e722 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1 +1,15 @@
-spring.application.name=FixLog
+spring.application.name=fixlog
+
+# DB setting
+spring.h2.console.enabled=true
+spring.h2.console.path=/h2-console
+
+# DataBase Info
+spring.datasource.url=jdbc:h2:tcp://localhost/~/fixlog
+spring.datasource.driver-class-name=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+
+spring.jpa.show-sql=true
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.H2Dialect
\ No newline at end of file
diff --git a/src/test/java/com/example/FixLog/FixLogApplicationTests.java b/src/test/java/com/example/fixlog/FixLogApplicationTests.java
similarity index 86%
rename from src/test/java/com/example/FixLog/FixLogApplicationTests.java
rename to src/test/java/com/example/fixlog/FixLogApplicationTests.java
index b25417c..09e177c 100644
--- a/src/test/java/com/example/FixLog/FixLogApplicationTests.java
+++ b/src/test/java/com/example/fixlog/FixLogApplicationTests.java
@@ -1,4 +1,4 @@
-package com.example.FixLog;
+package com.example.fixlog;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;