在网络安全课程虚拟化仿真教学中,如何搭建复杂的虚拟化网络工程环境,如何进行教学过程设计是课程教学的关键点。本文通过分析VMware、GNS3、sniffer等虚拟化软件的基本原理,详述各软件配置及相互配合,并研究了VMware虚拟机与GNS3虚拟的网络设备互联的关键技术。最后以“WEB页面信息安全课程单元”为例,介绍了虚拟化仿真技术在网络安全实例教学中的设计和实现。 How to set up a complex virtual network environment and how to design the teaching process are the key points in the course teaching. By analyzing the basic principles of virtualization software such as VMware, GNS3, and sniffer, this paper describes the software configuration and interworking, and studies the key technologies of interconnecting VMware virtual machines and GNS3 virtual network devices. Finally, taking “WEB page information security course unit” as an example, this paper introduces the design and implementation of virtualization simulation technology in the teaching of network security.