1 
vim /etc/apt/sources.list
添加：

deb https://download.virtualbox.org/virtualbox/debian bullseye contrib

2

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

3

sudo apt-get update
sudo apt-get install virtualbox-6.1

官方下载地址：

Linux_Downloads – Oracle VM VirtualBox