0引言随着网络技术的高度发展,网络攻击事件屡见不鲜,网络风险评估技术得以应用。网络安全风险评估能够及时发现以及处理网络安全中问题,传统的网络安全风险评估方法不能对主机之间的孤立性脆弱性进行考虑,为网络安全带来风险。将攻击图技术应用其中,该技术能够通过网络中的对象相互依赖关系,实施网络安全加固措施。基于攻击图的网络安全风险评估技术是一种先进的网络技术,在性能上更加的完善,能够实现网络安全的有效 0 Introduction With the rapid development of network technology, network attacks are not uncommon, and network risk assessment techniques are applied. Network security risk assessment can detect and deal with problems in network security in time. Traditional methods of network security risk assessment can not consider the isolation fragility between hosts and bring risks to network security. Application of attack graph technology, which can implement network security reinforcement measures through the interdependence of objects in the network. Attack graph-based network security risk assessment technology is an advanced network technology, more perfect in performance, to achieve effective network security