“计算机网络安全”课程目前已在各高校得到广泛开展,但相对于计算机网络的其他课程而言,网络安全存在“起点高,难度大”的特点。学生缺少对网络攻击原理的全面理解,只能局限于一些网络安全设备的基本操作。为了满足对网络攻防的教学、科研和培养人才的需要,以北京信息科技大学教学改革为背景,论述了其中的一些方法。 Currently, “Courses in Computer Network Security” has been widely implemented in all colleges and universities. However, compared with other courses in computer networks, there is a characteristic of “high starting point and great difficulty” in network security. Students lack a comprehensive understanding of the principle of network attacks, can only be confined to the basic operation of some network security devices. In order to meet the need of teaching offensive and defensive network, scientific research and training of talents, this paper discusses some of the methods based on the teaching reform of Beijing University of Information Science and Technology.