在信息与网络飞速发展的今天,计算机网络逐渐普及并被应用于世界的各个角落,为社会经济及政治文化等的发展带来了极大的价值。但同时,网络安全问题成为人们重点关注的主要问题,而网络拓扑结构自身的脆弱性是引起网络安全问题的主要原因。基于此,通过分析并研究网络拓扑结构的脆弱性,对网络拓扑网络节点的重要性进行评估,构建起网络攻击图的模型,使拓扑结构的脆弱性评估顺利地完成。 With the rapid development of information and network, the computer network is gradually popularized and applied to every corner of the world, bringing great value to the development of socio-economic and political culture. However, at the same time, the issue of network security has become a major issue that people are focusing on. The vulnerability of the network topology itself is the main cause of network security problems. Based on this, by analyzing and studying the vulnerability of network topology, the importance of network topology network nodes is evaluated, and the model of network attack graph is constructed, so that the vulnerability assessment of topology is successfully completed.