diff --git a/simple-mind-map/index.js b/simple-mind-map/index.js
index 48587f37..23db2ceb 100644
--- a/simple-mind-map/index.js
+++ b/simple-mind-map/index.js
@@ -19,7 +19,8 @@ import {
   simpleDeepClone,
   getType,
   getObjectChangedProps,
-  isUndef
+  isUndef,
+  handleGetSvgDataExtraContent
 } from './src/utils'
 import defaultTheme, {
   checkIsNodeSizeIndependenceConfig
@@ -414,7 +415,18 @@ class MindMap {
   }
 
   // 获取svg数据
-  getSvgData({ paddingX = 0, paddingY = 0, ignoreWatermark = false } = {}) {
+  getSvgData({
+    paddingX = 0,
+    paddingY = 0,
+    ignoreWatermark = false,
+    addContentToHeader,
+    addContentToFooter
+  } = {}) {
+    const { cssTextList, header, headerHeight, footer, footerHeight } =
+      handleGetSvgDataExtraContent({
+        addContentToHeader,
+        addContentToFooter
+      })
     const svg = this.svg
     const draw = this.draw
     // 保存原始信息
@@ -427,8 +439,9 @@ class MindMap {
     // 获取变换后的位置尺寸信息，其实是getBoundingClientRect方法的包装方法
     const rect = draw.rbox()
     // 内边距
+    const fixHeight = 0
     rect.width += paddingX * 2
-    rect.height += paddingY * 2
+    rect.height += paddingY * 2 + fixHeight + headerHeight + footerHeight
     draw.translate(paddingX, paddingY)
     // 将svg设置为实际内容的宽高
     svg.size(rect.width, rect.height)
@@ -466,7 +479,21 @@ class MindMap {
       this.watermark.isInExport = false
     }
     // 添加必要的样式
-    clone.add(SVG(`<style>${cssContent}</style>`))
+    ;[cssContent, ...cssTextList].forEach(s => {
+      clone.add(SVG(`<style>${s}</style>`))
+    })
+    // 附加内容
+    if (header && headerHeight > 0) {
+      clone.findOne('.smm-container').translate(0, headerHeight)
+      header.width(rect.width)
+      header.y(paddingY)
+      clone.add(header, 0)
+    }
+    if (footer && footerHeight > 0) {
+      footer.width(rect.width)
+      footer.y(rect.height - paddingY - footerHeight)
+      clone.add(footer)
+    }
     // 修正defs里定义的元素的id，因为clone时defs里的元素的id会继续递增，导致和内容中引用的id对不上
     const defs = svg.find('defs')
     const defs2 = clone.find('defs')
diff --git a/simple-mind-map/src/constants/defaultOptions.js b/simple-mind-map/src/constants/defaultOptions.js
index fa1f8549..cab8da64 100644
--- a/simple-mind-map/src/constants/defaultOptions.js
+++ b/simple-mind-map/src/constants/defaultOptions.js
@@ -294,8 +294,8 @@ export const defaultOpt = {
   beforeShortcutRun: null,
   // 彩虹线条配置，需要先注册RainbowLines插件
   rainbowLinesConfig: {
-    open: false,// 是否开启彩虹线条
-    colorsList: []// 自定义彩虹线条的颜色列表，如果不设置，会使用默认颜色列表
+    open: false, // 是否开启彩虹线条
+    colorsList: [] // 自定义彩虹线条的颜色列表，如果不设置，会使用默认颜色列表
     /*
     [
       'rgb(255, 213, 73)',
@@ -307,5 +307,16 @@ export const defaultOpt = {
       'rgb(152, 132, 234)'
     ]
     */
-  }
+  },
+  // 导出png、svg、pdf时在头部和尾部添加自定义内容
+  // 可传递一个函数，这个函数需要返回如下数据：
+  /*
+    {
+      el,// 要追加的自定义DOM节点，样式可内联
+      cssText,// 可选，如果样式不想内联，可以传递该值，一个css字符串
+      height: 50// 返回的DOM节点的高度，必须传递
+    }
+  */
+  addContentToHeader: null,
+  addContentToFooter: null
 }
diff --git a/simple-mind-map/src/plugins/Export.js b/simple-mind-map/src/plugins/Export.js
index a556e5fd..589ff89a 100644
--- a/simple-mind-map/src/plugins/Export.js
+++ b/simple-mind-map/src/plugins/Export.js
@@ -48,11 +48,13 @@ class Export {
 
   //  获取svg数据
   async getSvgData() {
-    let { exportPaddingX, exportPaddingY, errorHandler, resetCss } =
+    let { exportPaddingX, exportPaddingY, errorHandler, resetCss, addContentToHeader, addContentToFooter } =
       this.mindMap.opt
     let { svg, svgHTML } = this.mindMap.getSvgData({
       paddingX: exportPaddingX,
-      paddingY: exportPaddingY
+      paddingY: exportPaddingY,
+      addContentToHeader,
+      addContentToFooter
     })
     // svg的image标签，把图片的url转换成data:url类型，否则导出会丢失图片
     const task1 = this.createTransformImgTaskList(
diff --git a/simple-mind-map/src/utils/index.js b/simple-mind-map/src/utils/index.js
index 87292a59..d234d976 100644
--- a/simple-mind-map/src/utils/index.js
+++ b/simple-mind-map/src/utils/index.js
@@ -4,6 +4,7 @@ import {
   selfCloseTagList
 } from '../constants/constant'
 import MersenneTwister from './mersenneTwister'
+import { ForeignObject } from '@svgdotjs/svg.js'
 
 //  深度优先遍历树
 export const walk = (
@@ -1315,3 +1316,46 @@ export const getRectRelativePosition = (rect1, rect2) => {
     return 'overlap'
   }
 }
+
+// 处理获取svg内容时添加额外内容
+export const handleGetSvgDataExtraContent = ({
+  addContentToHeader,
+  addContentToFooter
+}) => {
+  // 追加内容
+  const cssTextList = []
+  let header = null
+  let headerHeight = 0
+  let footer = null
+  let footerHeight = 0
+  const handle = (fn, callback) => {
+    if (typeof fn === 'function') {
+      const { el, cssText, height } = fn()
+      if (el instanceof HTMLElement) {
+        el.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml')
+        const foreignObject = new ForeignObject()
+        foreignObject.height(height)
+        foreignObject.add(el)
+        callback(foreignObject, height)
+      }
+      if (cssText) {
+        cssTextList.push(cssText)
+      }
+    }
+  }
+  handle(addContentToHeader, (foreignObject, height) => {
+    header = foreignObject
+    headerHeight = height
+  })
+  handle(addContentToFooter, (foreignObject, height) => {
+    footer = foreignObject
+    footerHeight = height
+  })
+  return {
+    cssTextList,
+    header,
+    headerHeight,
+    footer,
+    footerHeight
+  }
+}