diff --git a/src/main/java/com/example/helloworldmvc/domain/Comment.java b/src/main/java/com/example/helloworldmvc/domain/Comment.java
new file mode 100644
index 0000000..42c4273
--- /dev/null
+++ b/src/main/java/com/example/helloworldmvc/domain/Comment.java
@@ -0,0 +1,22 @@
+package com.example.helloworldmvc.domain;
+
+import com.example.helloworldmvc.domain.common.BaseEntity;
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@Getter
+@Builder
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+public class Comment extends BaseEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(nullable = false)
+    private String content;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    private User user;
+}
diff --git a/src/main/java/com/example/helloworldmvc/domain/Community.java b/src/main/java/com/example/helloworldmvc/domain/Community.java
new file mode 100644
index 0000000..55f407f
--- /dev/null
+++ b/src/main/java/com/example/helloworldmvc/domain/Community.java
@@ -0,0 +1,37 @@
+package com.example.helloworldmvc.domain;
+
+import com.example.helloworldmvc.domain.common.BaseEntity;
+import com.example.helloworldmvc.domain.enums.CommunityCategory;
+import jakarta.persistence.*;
+import lombok.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Getter
+@Builder
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+public class Community extends BaseEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(nullable = false)
+    private String title;
+
+    @Column(nullable = false)
+    private String content;
+
+    @Enumerated(EnumType.STRING)
+    @Column(columnDefinition = "VARCHAR(10) DEFAULT 'ETC'")
+    private CommunityCategory communityCategory;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    private User user;
+
+    @OneToMany(mappedBy = "community", cascade = CascadeType.ALL)
+    private List<File> fileList = new ArrayList<>();
+
+}
diff --git a/src/main/java/com/example/helloworldmvc/domain/File.java b/src/main/java/com/example/helloworldmvc/domain/File.java
index 9c4f6e3..197bd22 100644
--- a/src/main/java/com/example/helloworldmvc/domain/File.java
+++ b/src/main/java/com/example/helloworldmvc/domain/File.java
@@ -23,6 +23,9 @@ public class File {
     @JoinColumn(name = "center_id")
     private Center center;
 
+    @ManyToOne(fetch = FetchType.LAZY)
+    private Community community;
+
     public void setUrl(String imageUrl){
         this.url = imageUrl;
     }
diff --git a/src/main/java/com/example/helloworldmvc/domain/User.java b/src/main/java/com/example/helloworldmvc/domain/User.java
index 5003382..6345f5a 100644
--- a/src/main/java/com/example/helloworldmvc/domain/User.java
+++ b/src/main/java/com/example/helloworldmvc/domain/User.java
@@ -44,6 +44,12 @@ public class User extends BaseEntity {
     @OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
     private List<UserLanguage> userLanguageList = new ArrayList<>();
 
+    @OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
+    private List<Comment> commentList = new ArrayList<>();
+
+    @OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
+    private List<Community> communityList = new ArrayList<>();
+
     public User update(String name) {
         this.name = name;
 
diff --git a/src/main/java/com/example/helloworldmvc/domain/enums/CommunityCategory.java b/src/main/java/com/example/helloworldmvc/domain/enums/CommunityCategory.java
new file mode 100644
index 0000000..1976016
--- /dev/null
+++ b/src/main/java/com/example/helloworldmvc/domain/enums/CommunityCategory.java
@@ -0,0 +1,6 @@
+package com.example.helloworldmvc.domain.enums;
+
+public enum CommunityCategory {
+    // 직장 내 고충, 산재 및 의료, 체류 및 근로 자격, 기타
+    WORRY, MEDICAL, QUALIFICATION, ETC
+}