diff --git a/BackEnd/src/posts/entities/posts.entity.ts b/BackEnd/src/posts/entities/posts.entity.ts
new file mode 100644
index 00000000..bb99dc0b
--- /dev/null
+++ b/BackEnd/src/posts/entities/posts.entity.ts
@@ -0,0 +1,43 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  UpdateDateColumn,
+  ManyToOne,
+  OneToOne,
+  JoinColumn,
+} from 'typeorm';
+import { RecordModel } from 'src/records/entities/records.entity';
+import { ProfileModel } from 'src/profiles/entities/profiles.entity';
+
+@Entity()
+export class PostModel {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column()
+  publicId: string;
+
+  @Column()
+  content: string;
+
+  @Column({ nullable: true })
+  like: number;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @UpdateDateColumn()
+  updatedAt: Date;
+
+  @Column()
+  deletedAt: Date;
+
+  @OneToOne(() => RecordModel)
+  @JoinColumn()
+  record: RecordModel;
+
+  @ManyToOne(() => ProfileModel, (profile) => profile.posts)
+  profile: ProfileModel;
+}
diff --git a/BackEnd/src/profiles/entities/profiles.entity.ts b/BackEnd/src/profiles/entities/profiles.entity.ts
new file mode 100644
index 00000000..b5bb60e7
--- /dev/null
+++ b/BackEnd/src/profiles/entities/profiles.entity.ts
@@ -0,0 +1,47 @@
+import { PostModel } from 'src/posts/entities/posts.entity';
+import { RecordModel } from 'src/records/entities/records.entity';
+import { UserModel } from 'src/users/entities/users.entity';
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  UpdateDateColumn,
+  Generated,
+  OneToOne,
+  OneToMany,
+} from 'typeorm';
+
+@Entity()
+export class ProfileModel {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column({ unique: true })
+  nickname: string;
+
+  @Column({ nullable: false })
+  gender: string;
+
+  @Column({ nullable: false })
+  birthdate: Date;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @UpdateDateColumn()
+  updatedAt: Date;
+
+  @Column({ unique: true })
+  @Generated('uuid')
+  publicId: string;
+
+  @OneToOne(() => UserModel, (user) => user.profile)
+  user: UserModel;
+
+  @OneToMany(() => RecordModel, (record) => record.profile)
+  records: RecordModel[];
+
+  @OneToMany(() => PostModel, (post) => post.profile)
+  posts: PostModel[];
+}
diff --git a/BackEnd/src/records/entities/records.entity.ts b/BackEnd/src/records/entities/records.entity.ts
new file mode 100644
index 00000000..bf373e7f
--- /dev/null
+++ b/BackEnd/src/records/entities/records.entity.ts
@@ -0,0 +1,47 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  CreateDateColumn,
+  ManyToOne,
+  OneToOne,
+} from 'typeorm';
+
+import { UserModel } from 'src/users/entities/users.entity';
+import { PostModel } from 'src/posts/entities/posts.entity';
+import { ProfileModel } from 'src/profiles/entities/profiles.entity';
+@Entity()
+export class RecordModel {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column()
+  exercise: string;
+
+  @Column()
+  runningTime: number;
+
+  @Column()
+  distance: number;
+
+  @Column({ nullable: true })
+  avgBpm: number;
+
+  @Column({ nullable: true })
+  minBpm: number;
+
+  @Column({ nullable: true })
+  maxBpm: number;
+
+  @CreateDateColumn()
+  createdAt: Date;
+
+  @Column()
+  checker: boolean;
+
+  @ManyToOne(() => ProfileModel, (profile) => profile.records) //manyToOne이 항상 외래키를 갖고 있음
+  profile: ProfileModel;
+
+  @OneToOne(() => PostModel, (post) => post.record)
+  post: PostModel;
+}
diff --git a/BackEnd/src/users/entities/users.entity.ts b/BackEnd/src/users/entities/users.entity.ts
new file mode 100644
index 00000000..1cc00a63
--- /dev/null
+++ b/BackEnd/src/users/entities/users.entity.ts
@@ -0,0 +1,26 @@
+import {
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  OneToOne,
+  JoinColumn,
+} from 'typeorm';
+import { ProfileModel } from 'src/profiles/entities/profiles.entity';
+@Entity()
+export class UserModel {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @Column()
+  userId: string;
+
+  @Column()
+  provider: string;
+
+  @OneToOne(() => ProfileModel, (profile) => profile.user, {
+    eager: true,
+    cascade: true,
+  })
+  @JoinColumn()
+  profile: ProfileModel;
+}