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效果图：

代码
<!--
    THIS EXAMPLE WAS DOWNLOADED FROM https://echarts.apache.org/examples/zh/editor.html?c=pie-nest
-->
<!DOCTYPE html>
<html style="height: 100%">
    <head>
        <meta charset="utf-8">
    </head>
    <body style="height: 100%; margin: 0">
        <div id="container" style="height: 100%"></div>
 
        
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5.3.1/dist/echarts.min.js"></script>
        <!-- Uncomment this line if you want to dataTool extension
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5.3.1/dist/extension/dataTool.min.js"></script>
        -->
        <!-- Uncomment this line if you want to use gl extension
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-gl@2/dist/echarts-gl.min.js"></script>
        -->
        <!-- Uncomment this line if you want to echarts-stat extension
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-stat@latest/dist/ecStat.min.js"></script>
        -->
        <!-- Uncomment this line if you want to use map
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5.3.1/map/js/china.js"></script>
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5.3.1/map/js/world.js"></script>
        -->
        <!-- Uncomment these two lines if you want to use bmap extension
        <script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=<Your Key Here>"></script>
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@{{version}}/dist/extension/bmap.min.js"></script>
        -->
 
        <script type="text/javascript">
var dom = document.getElementById("container");
var myChart = echarts.init(dom);
var app = {};
 
var option;
 
 
 
option = {
  tooltip: {
    trigger: 'item',
    formatter: '{a} <br/>{b}: {c} ({d}%)'
  },
  legend: {
    data: [
      'Direct',
      'Marketing',
      'Search Engine',
      'Email',
      'Union Ads',
      'Video Ads',
      'Baidu',
      'Google',
      'Bing',
      'Others'
    ]
  },
  series: [
    {
      name: 'Access From',
      type: 'pie',
      selectedMode: 'single',
      radius: [0, '30%'],
      label: {
        position: 'inner',
        fontSize: 14
      },
      labelLine: {
        show: false
      },
      data: [
        { value: 1548, name: 'Search Engine' },
        { value: 775, name: 'Direct' },
        { value: 679, name: 'Marketing', selected: true }
      ]
    },
    {
      name: 'Access From',
      type: 'pie',
      radius: ['80%', '90%'],
      labelLine: {
        length: 30
      },
      label: {
        formatter: '{a|{a}}{abg|}\n{hr|}\n  {b|{b}：}{c}  {per|{d}%}  ',
        backgroundColor: '#F6F8FC',
        borderColor: '#8C8D8E',
        borderWidth: 1,
        borderRadius: 4,
        rich: {
          a: {
            color: '#6E7079',
            lineHeight: 22,
            align: 'center'
          },
          hr: {
            borderColor: '#8C8D8E',
            width: '100%',
            borderWidth: 1,
            height: 0
          },
          b: {
            color: '#4C5058',
            fontSize: 14,
            fontWeight: 'bold',
            lineHeight: 33
          },
          per: {
            color: '#fff',
            backgroundColor: '#4C5058',
            padding: [3, 4],
            borderRadius: 4
          }
        }
      },
      data: [
        { value: 1048, name: 'Baidu' },
        { value: 335, name: 'Direct' },
        { value: 310, name: 'Email' },
        { value: 251, name: 'Google' },
        { value: 234, name: 'Union Ads' },
        { value: 147, name: 'Bing' },
        { value: 135, name: 'Video Ads' },
        { value: 102, name: 'Others' }
      ]
    },
    {
      name: 'Access From',
      type: 'pie',
      radius: ['60%', '70%'],
      labelLine: {
        length: 0
      },
      itemStyle: {
        borderRadius: 10,
        borderColor: '#fff',
        borderWidth: 2
      },
      label: {
        formatter: '{a|{a}}{abg|}\n{hr|}\n  {b|{b}：}{c}  {per|{d}%}  ',
        backgroundColor: '#F6F8FC',
        borderColor: '#8C8D8E',
        borderWidth: 1,
        borderRadius: 4,
        rich: {
          a: {
            color: '#6E7079',
            lineHeight: 22,
            align: 'center'
          },
          hr: {
            borderColor: '#8C8D8E',
            width: '100%',
            borderWidth: 1,
            height: 0
          },
          b: {
            color: '#4C5058',
            fontSize: 14,
            fontWeight: 'bold',
            lineHeight: 33
          },
          per: {
            color: '#fff',
            backgroundColor: '#4C5058',
            padding: [3, 4],
            borderRadius: 4
          }
        }
      },
      data: [
        { value: 1048, name: 'Baidu' },
        { value: 335, name: 'Direct' },
        { value: 310, name: 'Email' },
        { value: 251, name: 'Google' },
        { value: 234, name: 'Union Ads' },
        { value: 147, name: 'Bing' },
        { value: 135, name: 'Video Ads' },
        { value: 102, name: 'Others' }
      ]
    }
  ]
};
 
if (option && typeof option === 'object') {
    myChart.setOption(option);
}
 
        </script>
    </body>
</html>
Echarts 环形图多层嵌套

效果图：
