随着信息技术的不断发展,计算机网络技术得到了广泛传播,在人们的生活工作中扮演着重要角色,极大的提高了工作效率,丰富了娱乐生活。而随着计算机网络的发展,计算机互联网应用的不断拓展,安全性问题成了人们日益关注的焦点,越来越多的人因为网络安全问题受到经济或者其他方面的损失,因此,如何做好网络安全工作,成了现如今需要切实做好的任务,本文结合实际情况,对计算机网络的特点进行了分析,并对其所面临的安全问题进行了解析,提出一些防范措施,有利于计算机网络更好的发展。 With the continuous development of information technology, computer network technology has been widely disseminated, playing an important role in people’s daily life and work, greatly improving work efficiency and enriching entertainment life. With the development of computer networks, the application of computer Internet has been expanding. Security has become the focus of increasing concern. More and more people are suffering economic or other losses due to network security issues. Therefore, how to make network Security work has now become a task that needs to be effectively done now. Based on the actual situation, this paper analyzes the characteristics of computer networks and analyzes the security problems they face. Some preventive measures are put forward that are beneficial to the improvement of computer networks Good development.