diff --git a/water-design-const/src/main/java/com/bonus/waterdesign/domain/CadData.java b/water-design-const/src/main/java/com/bonus/waterdesign/domain/CadData.java
index aac305b..f9847ae 100644
--- a/water-design-const/src/main/java/com/bonus/waterdesign/domain/CadData.java
+++ b/water-design-const/src/main/java/com/bonus/waterdesign/domain/CadData.java
@@ -14,7 +14,7 @@ public class CadData {
     private Integer lineweight;
     private Double thickness;
     private Double transparency;
-
+    private  String projectId;
     /**
      * 起点坐标（适用于 LINE）
      */
diff --git a/water-design-const/src/main/java/com/bonus/waterdesign/service/impl/ModelServiceImpl.java b/water-design-const/src/main/java/com/bonus/waterdesign/service/impl/ModelServiceImpl.java
index 7437d6b..8a71906 100644
--- a/water-design-const/src/main/java/com/bonus/waterdesign/service/impl/ModelServiceImpl.java
+++ b/water-design-const/src/main/java/com/bonus/waterdesign/service/impl/ModelServiceImpl.java
@@ -109,6 +109,7 @@ public class ModelServiceImpl implements ModelService {
             List<CadData> cadDataList = model.getSelectedEntities();
             if (cadDataList != null && !cadDataList.isEmpty()) {
                 for (CadData data : cadDataList) {
+                    data.setProjectId(model.getProjectId());
                     projectMapper.insertCadData(data);
                 }
             }
diff --git a/water-design-const/src/main/resources/mapper/ProjectMapper.xml b/water-design-const/src/main/resources/mapper/ProjectMapper.xml
index 01471e6..6c3662a 100644
--- a/water-design-const/src/main/resources/mapper/ProjectMapper.xml
+++ b/water-design-const/src/main/resources/mapper/ProjectMapper.xml
@@ -141,11 +141,11 @@
 		INSERT INTO cad_data (
 			layer_name, entity_type, color, lineweight,
 			thickness, transparency, start_point, end_point,
-			center_point, radius, points, geometry, created_at
+			center_point, radius, points, geometry, created_at,project_id
 		) VALUES (
 					 #{layerName}, #{entityType}, #{color}, #{lineweight},
 					 #{thickness}, #{transparency}, #{startPoint}, #{endPoint},
-					 #{centerPoint}, #{radius}, #{points}, #{geometry}, #{createdAt}
+					 #{centerPoint}, #{radius}, #{points}, #{geometry}, #{createdAt},#{projectId}
 				 )
 	</insert>