diff --git a/src/core/Constract.ts b/src/core/Constract.ts
index 0f4e6c7..38df017 100644
--- a/src/core/Constract.ts
+++ b/src/core/Constract.ts
@@ -33,6 +33,6 @@ const Constract = Object.freeze({
   HEIGHT_WAY_LABEL: 0.03,
   HEIGHT_WAY_LINE: 0.02,
 
-  MAX_MEASURE_INSTANCES: 1000,
+  MAX_MEASURE_INSTANCES: 20000,
 })
 export default Constract
diff --git a/src/core/manager/InstancePointManager.ts b/src/core/manager/InstancePointManager.ts
index f2f9945..05effac 100644
--- a/src/core/manager/InstancePointManager.ts
+++ b/src/core/manager/InstancePointManager.ts
@@ -146,18 +146,12 @@ export default class InstancePointManager {
     viewport: Viewport,
     geometry: THREE.BufferGeometry,
     material: THREE.Material,
-    maxInstances: number = 1000
+    maxInstances: number = 20000
   ): InstancePointManager {
     return new InstancePointManager(name, viewport, geometry, material, maxInstances)
   }
 
-  private constructor(
-    name: string,
-    viewport: Viewport,
-    geometry: THREE.BufferGeometry,
-    material: THREE.Material,
-    maxInstances: number = 1000
-  ) {
+  private constructor(name: string, viewport: Viewport, geometry: THREE.BufferGeometry, material: THREE.Material, maxInstances: number) {
     this.viewport = viewport
     this.geometry = geometry
     this.material = material
diff --git a/src/core/manager/LabelManager.ts b/src/core/manager/LabelManager.ts
index e4a26eb..06c3f04 100644
--- a/src/core/manager/LabelManager.ts
+++ b/src/core/manager/LabelManager.ts
@@ -36,9 +36,13 @@ export interface LabelOption {
 export default class LabelManager implements IControls {
   viewport: Viewport
   private labelMap: Map<string, Text | CSS2DObject> = new Map()
+  private labelGroup: THREE.Group
 
   init(viewport: Viewport): void {
     this.viewport = viewport
+    this.labelGroup = new THREE.Group()
+    this.labelGroup.visible = false
+    this.viewport.scene.add(this.labelGroup)
   }
 
   createOrUpdateLabelByDistance(lineRef: Object3DLike, startPos: THREE.Vector3, endPos: THREE.Vector3, option: LabelOption): Text | CSS2DObject {
@@ -64,7 +68,7 @@ export default class LabelManager implements IControls {
     const labelObj = this.createLabelObject(option)
     parentObj.userData.labelObjectId = labelObj.uuid
 
-    this.viewport.scene.add(labelObj)
+    this.labelGroup.add(labelObj)
 
     if (labelObj instanceof CSS2DObject) {
       labelObj.element.innerHTML = option.text
@@ -99,7 +103,7 @@ export default class LabelManager implements IControls {
     if (parentObj?.userData?.labelObjectId) {
       const labelObj = this.labelMap.get(parentObj.userData.labelObjectId)
       this.labelMap.delete(labelObj.uuid)
-      this.viewport.scene.remove(labelObj)
+      this.labelGroup.remove(labelObj)
       labelObj.dispose()
       parentObj.userData.labelObjectId = undefined
     }
@@ -108,7 +112,7 @@ export default class LabelManager implements IControls {
   removeById(id: string): void {
     const labelObj = this.labelMap.get(id)
     if (labelObj) {
-      this.viewport.scene.remove(labelObj)
+      this.labelGroup.remove(labelObj)
       this.labelMap.delete(id)
       labelObj.dispose()
     }
@@ -160,6 +164,8 @@ export default class LabelManager implements IControls {
 
   dispose(): void {
     // 清理资源
+    this.viewport.scene.remove(this.labelGroup)
+    this.labelGroup.clear()
     this.viewport = undefined
   }