diff --git a/src/main/java/com/project/InsightPrep/domain/post/entity/Comment.java b/src/main/java/com/project/InsightPrep/domain/post/entity/Comment.java
new file mode 100644
index 0000000..66bbf04
--- /dev/null
+++ b/src/main/java/com/project/InsightPrep/domain/post/entity/Comment.java
@@ -0,0 +1,45 @@
+package com.project.InsightPrep.domain.post.entity;
+
+import com.project.InsightPrep.domain.member.entity.Member;
+import com.project.InsightPrep.global.common.entity.BaseTimeEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "comment")
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+@Builder
+public class Comment extends BaseTimeEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    // 댓글 내용
+    @Column(columnDefinition = "TEXT", nullable = false)
+    private String content;
+
+    // 댓글 작성자
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "member_id", nullable = false)
+    private Member member;
+
+    // 댓글이 달린 공유 게시글
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "post_id", nullable = false)
+    private SharedPost sharedPost;
+}
diff --git a/src/main/java/com/project/InsightPrep/domain/post/entity/PostStatus.java b/src/main/java/com/project/InsightPrep/domain/post/entity/PostStatus.java
new file mode 100644
index 0000000..632bc6d
--- /dev/null
+++ b/src/main/java/com/project/InsightPrep/domain/post/entity/PostStatus.java
@@ -0,0 +1,5 @@
+package com.project.InsightPrep.domain.post.entity;
+
+public enum PostStatus {
+    OPEN, RESOLVED
+}
diff --git a/src/main/java/com/project/InsightPrep/domain/post/entity/SharedPost.java b/src/main/java/com/project/InsightPrep/domain/post/entity/SharedPost.java
new file mode 100644
index 0000000..a606323
--- /dev/null
+++ b/src/main/java/com/project/InsightPrep/domain/post/entity/SharedPost.java
@@ -0,0 +1,56 @@
+package com.project.InsightPrep.domain.post.entity;
+
+import com.project.InsightPrep.domain.member.entity.Member;
+import com.project.InsightPrep.domain.question.entity.Answer;
+import com.project.InsightPrep.global.common.entity.BaseTimeEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "shared_post")
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+@Builder
+public class SharedPost extends BaseTimeEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(nullable = false)
+    private String title;
+
+    // 게시글 본문
+    @Column(nullable = false, columnDefinition = "TEXT")
+    private String content;
+
+    // 공유된 답변
+    @ManyToOne(fetch = FetchType.LAZY, optional = false)
+    @JoinColumn(name = "answer_id")
+    private Answer answer;
+
+    // 작성자
+    @ManyToOne(fetch = FetchType.LAZY, optional = false)
+    @JoinColumn(name = "member_id")
+    private Member member;
+
+    // 게시글 상태: OPEN or RESOLVED
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    private PostStatus status = PostStatus.OPEN;
+}
diff --git a/src/main/java/com/project/InsightPrep/domain/question/entity/ReviewBookmark.java b/src/main/java/com/project/InsightPrep/domain/question/entity/ReviewBookmark.java
deleted file mode 100644
index a7e5ee0..0000000
--- a/src/main/java/com/project/InsightPrep/domain/question/entity/ReviewBookmark.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.project.InsightPrep.domain.question.entity;
-
-import com.project.InsightPrep.domain.member.entity.Member;
-import com.project.InsightPrep.global.common.entity.BaseTimeEntity;
-import jakarta.persistence.Entity;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.GenerationType;
-import jakarta.persistence.Id;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.Table;
-
-@Entity
-@Table(name = "review_bookmark")
-public class ReviewBookmark extends BaseTimeEntity {
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    @ManyToOne
-    @JoinColumn(name = "member_id", nullable = false)
-    private Member member;
-
-    @ManyToOne
-    @JoinColumn(name = "answer_id", nullable = false)
-    private Answer answer;
-}