是的，可以。您可以通过设置每个系列或直接每个点的packedbubble.marker.symbol来实现这一点。

series: [{
    marker: {
        symbol: 'url(https://www.highcharts.com/samples/graphics/earth.svg)'
    },
data: [{
  value: 67.1,
        marker: {
            symbol: 'url(https://upload.wikimedia.org/wikipedia/en/thumb/9/9a/Trollface_non-free.png/220px-Trollface_non-free.png)'
        },
}, {
  value: 520.7
}]

}]

演示：https://jsfiddle.net/BlackLabel/mb7fr95z/
API：https://api.highcharts.com/highcharts/plotOptions.packedbubble.marker.symbol