diff --git a/simple-mind-map/src/core/render/Render.js b/simple-mind-map/src/core/render/Render.js
index 491ff32c..4091c2b7 100644
--- a/simple-mind-map/src/core/render/Render.js
+++ b/simple-mind-map/src/core/render/Render.js
@@ -97,7 +97,7 @@ class Render {
     this.beingPasteText = ''
     this.beingPasteImgSize = 0
     this.currentBeingPasteType = ''
-    this.pasteData = { text: null, img: null}
+    this.pasteData = { text: null, img: null }
     // 节点高亮框
     this.highlightBoxNode = null
     this.highlightBoxNodeStyle = null
@@ -132,11 +132,6 @@ class Render {
     }
   }
 
-   // 解绑事件
-   unBindEvent() {
-    window.removeEventListener('paste', this.handlePaste)
-  }
-
   //   绑定事件
   bindEvent() {
     // 画布点击事件清除当前激活节点列表
@@ -168,11 +163,11 @@ class Render {
       })
     }
     // 处理非https下的复制黏贴问题
-    if(!navigator.clipboard) {
+    if (!navigator.clipboard) {
       this.handlePaste = this.handlePaste.bind(this)
       window.addEventListener('paste', this.handlePaste)
       this.mindMap.on('beforeDestroy', () => {
-        this.unBindEvent() 
+        window.removeEventListener('paste', this.handlePaste)
       })
     }
   }
@@ -419,7 +414,7 @@ class Render {
     this.mindMap.keyCommand.addShortcut('Control+Down', () => {
       this.mindMap.execCommand('DOWN_NODE')
     })
-    // 复制节点、
+    // 复制节点
     this.mindMap.keyCommand.addShortcut('Control+c', () => {
       this.copy()
     })
@@ -429,7 +424,7 @@ class Render {
     })
     // 粘贴节点
     this.mindMap.keyCommand.addShortcut('Control+v', () => {
-      if(navigator.clipboard) this.paste()
+      if (navigator.clipboard) this.paste()
     })
     // 根节点居中显示
     this.mindMap.keyCommand.addShortcut('Control+Enter', () => {
@@ -1133,23 +1128,24 @@ class Render {
   }
 
   // 非https下复制黏贴，获取内容方法
-  handlePaste(event){ 
-    const clipboardData = event.clipboardData || event.originalEvent.clipboardData || window.clipboardData
+  handlePaste(event) {
+    const { disabledClipboard } = this.mindMap.opt
+    if (disabledClipboard) return
+    const clipboardData =
+      event.clipboardData || event.originalEvent.clipboardData
     const items = clipboardData.items
-    const clipboardType = items && items.length ? items[0].type : ''
-    const isImg = clipboardType.indexOf('image') > -1
-    const isText = clipboardType.indexOf('text') > -1
-      this.pasteData = { img: null, text: null}
-    
-    // 复制的图片处理逻辑
-    if (isImg) {
-      for (let index in items) {
-        const item = items[index]
-        if (item.kind === 'file') this.pasteData.img = item.getAsFile()
+    let img = null
+    let text = ''
+    Array.from(items).forEach(item => {
+      if (item.type.indexOf('image') > -1) {
+        img = item.getAsFile()
       }
-    }
-    // 复制的文本处理逻辑
-    if (isText) this.pasteData.text = clipboardData.getData('text')
+      if (item.type.indexOf('text') > -1) {
+        text = clipboardData.getData('text')
+      }
+    })
+    this.pasteData.img = img
+    this.pasteData.text = text
     this.paste()
   }
 
@@ -1166,7 +1162,9 @@ class Render {
     let img = null
     if (!disabledClipboard) {
       try {
-        const res = navigator.clipboard ? await getDataFromClipboard() : this.pasteData 
+        const res = navigator.clipboard
+          ? await getDataFromClipboard()
+          : this.pasteData
         text = res.text || ''
         img = res.img || null
       } catch (error) {
@@ -1600,7 +1598,7 @@ class Render {
     this.setNodeDataRender(node, data)
     // 更新了连线的样式
     if (lineStyleProps.includes(prop)) {
-      (node.parent || node).renderLine(true)
+      ;(node.parent || node).renderLine(true)
     }
   }
 
@@ -1621,7 +1619,7 @@ class Render {
       }
     })
     if (hasLineStyleProps) {
-      (node.parent || node).renderLine(true)
+      ;(node.parent || node).renderLine(true)
     }
   }