diff --git a/src/model/ModelUtils.ts b/src/model/ModelUtils.ts
index 4bd21f5..31c01c4 100644
--- a/src/model/ModelUtils.ts
+++ b/src/model/ModelUtils.ts
@@ -26,7 +26,7 @@ export function deletePointByKeyboard() {
     return
   }
 
-  if(!selectedObject.userData?.type){
+  if (!selectedObject.userData?.type) {
     system.msg('选中的对象没有类型信息')
     return
   }
@@ -77,7 +77,7 @@ export function quickCopyByMouse() {
   // console.log('intersections:', intersections)
 
   // 如果不在线上，查找0.2米内的有效点 Object3D, 如果有，则以这个点为起点, 延伸同类型的点，并让他们相连
-  findObject3DByCondition(viewport.scene, object => {
+  const r = findObject3DByCondition(viewport.scene, object => {
     // 判断 object 是否是有效的 Object3D, 并且是当前 viewport 的对象
     if (object instanceof THREE.Object3D && object.visible &&
       object.userData.type && viewport.toolbox[object.userData.type]) {
@@ -97,6 +97,11 @@ export function quickCopyByMouse() {
     }
     return false
   })
+
+  if (!r || r.length === 0) {
+    system.msg('鼠标所在位置，没有可复制的对象')
+    return
+  }
 }
 
 //
@@ -181,6 +186,19 @@ export function calcPositionUseSnap(e: MouseEvent, point: THREE.Vector3) {
   return point
 }
 
+export function getAllControlPoints(): THREE.Object3D[] {
+  const allPoints: THREE.Object3D[] = []
+
+  getAllItemTypes().forEach((itemType: ItemTypeDefineOption) => {
+    if (itemType.clazz && itemType.clazz.pointArray) {
+      // 将每个 ItemType 的点添加到结果数组中
+      allPoints.push(...itemType.clazz.pointArray)
+    }
+  })
+
+  return allPoints
+}
+
 /**
  * 在给定的场景中查找具有指定 uuid 的 Object3D 对象
  */
diff --git a/src/model/itemType/ToolboxLine.ts b/src/model/itemType/ToolboxLine.ts
index 60857d3..7a07543 100644
--- a/src/model/itemType/ToolboxLine.ts
+++ b/src/model/itemType/ToolboxLine.ts
@@ -1,7 +1,7 @@
 import * as THREE from 'three'
 import Toolbox from '@/model/itemType/Toolbox.ts'
 import type ItemTypeLine from '@/model/itemType/ItemTypeLine.ts'
-import { findObject3DById } from '@/model/ModelUtils.ts'
+import { findObject3DById, getAllControlPoints } from '@/model/ModelUtils.ts'
 import EventBus from '@/runtime/EventBus'
 
 /**
@@ -24,13 +24,13 @@ export default class ToolboxLine extends Toolbox {
   afterMoveTemplateLine(line: THREE.Mesh, startPoint: THREE.Object3D, endPoint: THREE.Object3D) {
   }
 
-  afterDeleteLine(line: THREE.Object3D, point: THREE.Object3D, relationPointIds: string[]) {
+  afterDeleteLine(line: THREE.Object3D, point: THREE.Object3D) {
   }
 
   stop() {
     super.stop()
 
-    this.tempLine && this.viewport.scene.remove(this.tempLine)
+    this.tempLine && this.removeFromScene(this.tempLine)
     this.tempLine = undefined
   }
 
@@ -44,9 +44,9 @@ export default class ToolboxLine extends Toolbox {
    * 删除点
    */
   deletePoint(point: THREE.Object3D) {
-    const relationPointIds = []
+    const allPoints = getAllControlPoints()
 
-    const deletedPoints = _.remove(this.itemType.pointArray, (p) => p.uuid === point.uuid)
+    const deletedPoints = _.remove(getAllControlPoints(), (p) => p.uuid === point.uuid)
     if (!deletedPoints || deletedPoints.length !== 1) {
       console.warn('没有找到要删除的点:', point.uuid)
       return
@@ -62,15 +62,10 @@ export default class ToolboxLine extends Toolbox {
     }
 
     // 找出与这个点相关的其他点
-    this.itemType.pointArray.forEach(p => {
+    allPoints.forEach(p => {
       if (p.userData.center) {
-        relationPointIds.push(..._.filter(p.userData.center, i => i === point.uuid))
         _.remove(p.userData.center, i => i === point.uuid)
-
-        relationPointIds.push(..._.filter(p.userData.in, i => i === point.uuid))
         _.remove(p.userData.in, i => i === point.uuid)
-
-        relationPointIds.push(..._.filter(p.userData.out, i => i === point.uuid))
         _.remove(p.userData.out, i => i === point.uuid)
       }
     })
@@ -79,7 +74,7 @@ export default class ToolboxLine extends Toolbox {
     _.forEach(point.userData.lines, (line) => {
       const lineObject = findObject3DById(this.viewport.scene, line)
       this.removeFromScene(lineObject)
-      this.afterDeleteLine(lineObject, point, relationPointIds)
+      this.afterDeleteLine(lineObject, point)
     })
 
     // 从场景中删除点
@@ -136,7 +131,7 @@ export default class ToolboxLine extends Toolbox {
         if (this.startPoint) {
           this.afterAddPoint(this.startPoint, catchPoint)
         }
-        this.tempLine && this.viewport.scene.remove(this.tempLine)
+        this.tempLine && this.removeFromScene(this.tempLine)
         this.tempLine = undefined
         return
       }
@@ -147,7 +142,7 @@ export default class ToolboxLine extends Toolbox {
       return
     }
 
-    this.tempLine && this.viewport.scene.remove(this.tempLine)
+    this.tempLine && this.removeFromScene(this.tempLine)
     this.tempLine = undefined
     return r
   }
diff --git a/src/model/itemType/measure/MeasureToolbox.ts b/src/model/itemType/measure/MeasureToolbox.ts
index f68fe44..a40b908 100644
--- a/src/model/itemType/measure/MeasureToolbox.ts
+++ b/src/model/itemType/measure/MeasureToolbox.ts
@@ -29,7 +29,7 @@ export default class MeasureToolbox extends ToolboxLine {
     super.stop()
 
     // 清除临时标签
-    this.tempLabel && this.viewport.scene.remove(this.tempLabel)
+    this.tempLabel && this.removeFromScene(this.tempLabel)
     this.tempLabel = undefined
   }
 
@@ -39,7 +39,7 @@ export default class MeasureToolbox extends ToolboxLine {
       return
     }
 
-    this.tempLabel && this.viewport.scene.remove(this.tempLabel)
+    this.tempLabel && this.removeFromScene(this.tempLabel)
     this.tempLabel = undefined
   }
 
@@ -51,10 +51,6 @@ export default class MeasureToolbox extends ToolboxLine {
     this.measure.group.add(object)
   }
 
-  removeFromScene(object: THREE.Object3D) {
-    this.measure.group.remove(object)
-  }
-
   afterMoveTemplateLine(line: THREE.Mesh, startPoint: THREE.Object3D, endPoint: THREE.Object3D) {
     super.afterMoveTemplateLine(line, startPoint, endPoint)
 
@@ -67,8 +63,8 @@ export default class MeasureToolbox extends ToolboxLine {
     this.addOrUpdateTempLabel(line, label, position)
   }
 
-  afterDeleteLine(line: THREE.Object3D, point: THREE.Object3D, relationPointIds: string[]) {
-    super.afterDeleteLine(line, point, relationPointIds)
+  afterDeleteLine(line: THREE.Object3D, point: THREE.Object3D) {
+    super.afterDeleteLine(line, point)
 
     // 删除临时标签
     if (line?.userData?.labelId) {