diff --git a/src/main/java/com/project/information/domain/entity/KnowledgeClusterEntity.java b/src/main/java/com/project/information/domain/entity/KnowledgeClusterEntity.java
new file mode 100644
index 0000000..d3079b0
--- /dev/null
+++ b/src/main/java/com/project/information/domain/entity/KnowledgeClusterEntity.java
@@ -0,0 +1,40 @@
+package com.project.information.domain.entity;
+
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.project.base.domain.entity.BaseEntity;
+import jakarta.persistence.*;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import org.hibernate.annotations.Comment;
+
+@Data
+@Table(name = "evaluator_knowledge_cluster" ,
+        indexes = {@Index(name = "Idx_informationId", columnList = "information_id")})
+@Entity
+@TableName(value = "evaluator_knowledge_cluster", autoResultMap = true)
+@EqualsAndHashCode(callSuper = true)
+public class KnowledgeClusterEntity extends BaseEntity {
+
+    @TableId(value = "id" , type = IdType.ASSIGN_ID)
+    @Id
+    private Long id;
+
+    @Column(name = "information_id")
+    @TableField("information_id")
+    @Comment("资料id")
+    private Long informationId;
+
+    @Column(name = "cluster_topic", length = 2000)
+    @Comment("簇主题/标签（由AI聚类后总结提取）")
+    @TableField("cluster_topic")
+    private String clusterTopic;
+
+    @Column(name = "cluster_size")
+    @TableField("cluster_size")
+    @Comment("簇大小(W)：该簇包含的知识点个数")
+    private Integer clusterSize;
+}
diff --git a/src/main/java/com/project/information/mapper/KnowledgeClusterMapper.java b/src/main/java/com/project/information/mapper/KnowledgeClusterMapper.java
new file mode 100644
index 0000000..3cf8fab
--- /dev/null
+++ b/src/main/java/com/project/information/mapper/KnowledgeClusterMapper.java
@@ -0,0 +1,9 @@
+package com.project.information.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.project.information.domain.entity.KnowledgeClusterEntity;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface KnowledgeClusterMapper extends BaseMapper<KnowledgeClusterEntity> {
+}
diff --git a/src/main/java/com/project/question/domain/entity/TaskKnowledgeClusterEntity.java b/src/main/java/com/project/question/domain/entity/TaskKnowledgeClusterEntity.java
index b9c3264..c33a975 100644
--- a/src/main/java/com/project/question/domain/entity/TaskKnowledgeClusterEntity.java
+++ b/src/main/java/com/project/question/domain/entity/TaskKnowledgeClusterEntity.java
@@ -26,10 +26,15 @@ public class TaskKnowledgeClusterEntity extends BaseEntity {
     @Comment("所属考试任务ID")
     private Long taskId;
 
-    @Column(name = "cluster_topic", length = 512)
+
+    @Column(name = "information_id")
+    @TableField("information_id")
+    @Comment("资料id")
+    private Long informationId;
+
+    @Column(name = "cluster_topic", length = 2000)
     @Comment("簇主题/标签（由AI聚类后总结提取）")
     @TableField("cluster_topic")
-
     private String clusterTopic;
 
     @Column(name = "cluster_size")