diff --git a/src/main/java/kr/re/etri/autoflow/entity/ProjectEntity.java b/src/main/java/kr/re/etri/autoflow/entity/ProjectEntity.java
index 1abcaf0..d43f16f 100644
--- a/src/main/java/kr/re/etri/autoflow/entity/ProjectEntity.java
+++ b/src/main/java/kr/re/etri/autoflow/entity/ProjectEntity.java
@@ -9,6 +9,8 @@ import org.springframework.data.annotation.LastModifiedDate;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
 
 @Schema(description = "프로젝트")
 @Comment("프로젝트")
@@ -77,4 +79,7 @@ public class ProjectEntity {
     @Schema(description = "수정 유저 이름", example = "시스템")
     @Comment("수정 유저 이름")
     private String modUserNm;
+
+    @OneToMany(mappedBy = "project", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<UserProjectMapEntity> userMappings = new ArrayList<>();
 }
diff --git a/src/main/java/kr/re/etri/autoflow/entity/ProjectPermission.java b/src/main/java/kr/re/etri/autoflow/entity/ProjectPermission.java
new file mode 100644
index 0000000..47db9ab
--- /dev/null
+++ b/src/main/java/kr/re/etri/autoflow/entity/ProjectPermission.java
@@ -0,0 +1,8 @@
+package kr.re.etri.autoflow.entity;
+
+public enum ProjectPermission {
+    CREATE,
+    READ,
+    UPDATE,
+    DELETE
+}
\ No newline at end of file
diff --git a/src/main/java/kr/re/etri/autoflow/entity/UserProjectMapEntity.java b/src/main/java/kr/re/etri/autoflow/entity/UserProjectMapEntity.java
new file mode 100644
index 0000000..5c4fab2
--- /dev/null
+++ b/src/main/java/kr/re/etri/autoflow/entity/UserProjectMapEntity.java
@@ -0,0 +1,44 @@
+package kr.re.etri.autoflow.entity;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.*;
+import kr.re.etri.autoflow.models.User;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import java.util.HashSet;
+import java.util.Set;
+
+@Entity
+@Table(name = "tb_user_project_map")
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@Schema(description = "유저-프로젝트 매핑 정보")
+public class UserProjectMapEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Schema(description = "매핑 ID", example = "1")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(nullable = false)
+    @Schema(description = "프로젝트 정보")
+    private ProjectEntity project;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(nullable = false)
+    @Schema(description = "사용자 정보")
+    private User user;
+
+    @ElementCollection(fetch = FetchType.EAGER)
+    @CollectionTable(name = "tb_user_project_permission", joinColumns = @JoinColumn(name = "user_project_id"))
+    @Enumerated(EnumType.STRING)
+    @Column(length = 20)
+    @Schema(description = "권한 목록", example = "[\"READ\", \"WRITE\"]")
+    private Set<ProjectPermission> permissions = new HashSet<>();
+}