编辑:leafpad /etc/apt/sources.list

删除所有内容添加以下:

然后选择适合自己较快的源：

deb http://mirrors.ustc.edu.cn/kali sana main non-free contrib

deb http://mirrors.ustc.edu.cn/kali-security/ sana/updates main contrib non-free

deb-src http://mirrors.ustc.edu.cn/kali-security/ sana/updates main contrib non-free

deb http://mirrors.aliyun.com/kali sana main non-free contrib

deb http://mirrors.aliyun.com/kali-security/ sana/updates main contrib non-free

deb-src http://mirrors.aliyun.com/kali-security/ sana/updates main contrib non-free

对软件进行一次整体更新：

 apt-get update & apt-get upgrade

apt-get dist-upgrade 

apt-get clean

Kali更新软件源方法