diff --git a/simple-mind-map/src/core/render/node/QuickCreateChildBtn.js b/simple-mind-map/src/core/render/node/QuickCreateChildBtn.js
deleted file mode 100644
index 257cb883..00000000
--- a/simple-mind-map/src/core/render/node/QuickCreateChildBtn.js
+++ /dev/null
@@ -1,85 +0,0 @@
-import btnsSvg from '../../../svg/btns'
-import { SVG, Circle, G } from '@svgdotjs/svg.js'
-
-function initQuickCreateChildBtn() {
-  this._quickCreateChildBtn = null
-  this._showQuickCreateChildBtn = false
-}
-
-// 显示按钮
-function showQuickCreateChildBtn() {
-  if (this.getChildrenLength() > 0) return
-  // 创建按钮
-  if (this._quickCreateChildBtn) {
-    this.group.add(this._quickCreateChildBtn)
-  } else {
-    const { quickCreateChildBtnIcon, expandBtnStyle, expandBtnSize } =
-      this.mindMap.opt
-    const { icon, style } = quickCreateChildBtnIcon
-    let { color, fill } = expandBtnStyle || {
-      color: '#808080',
-      fill: '#fff'
-    }
-    color = style.color || color
-    // 图标节点
-    const iconNode = SVG(icon || btnsSvg.quickCreateChild).size(
-      expandBtnSize,
-      expandBtnSize
-    )
-    iconNode.css({
-      cursor: 'pointer'
-    })
-    iconNode.x(0).y(-expandBtnSize / 2)
-    this.style.iconNode(iconNode, color)
-    // 填充节点
-    const fillNode = new Circle().size(expandBtnSize)
-    fillNode.x(0).y(-expandBtnSize / 2)
-    fillNode.fill({ color: fill }).css({
-      cursor: 'pointer'
-    })
-    // 容器节点
-    this._quickCreateChildBtn = new G()
-    this._quickCreateChildBtn.add(fillNode).add(iconNode)
-    this._quickCreateChildBtn.on('click', e => {
-      e.stopPropagation()
-      this.mindMap.emit('quick_create_btn_click', this)
-      const { customQuickCreateChildBtnClick } = this.mindMap.opt
-      if (typeof customQuickCreateChildBtnClick === 'function') {
-        customQuickCreateChildBtnClick(this)
-        return
-      }
-      this.mindMap.execCommand('INSERT_CHILD_NODE', true, [this])
-    })
-    this._quickCreateChildBtn.on('dblclick', e => {
-      e.stopPropagation()
-    })
-    this._quickCreateChildBtn.addClass('smm-quick-create-child-btn')
-    this.group.add(this._quickCreateChildBtn)
-  }
-  this._showQuickCreateChildBtn = true
-  // 更新按钮
-  this.renderer.layout.renderExpandBtn(this, this._quickCreateChildBtn)
-}
-
-//  移除按钮
-function removeQuickCreateChildBtn() {
-  if (this._quickCreateChildBtn && this._showQuickCreateChildBtn) {
-    this._quickCreateChildBtn.remove()
-    this._showQuickCreateChildBtn = false
-  }
-}
-
-// 隐藏按钮
-function hideQuickCreateChildBtn() {
-  const { isActive } = this.getData()
-  if (!isActive) {
-    this.removeQuickCreateChildBtn()
-  }
-}
-
-export default {
-  initQuickCreateChildBtn,
-  showQuickCreateChildBtn,
-  removeQuickCreateChildBtn,
-  hideQuickCreateChildBtn
-}