当前计算机网络的安全性问题,对于一个国家的信息安全和经济发展的重要性已经不言而喻。本文结合信息网络安全内涵发生的根本变化,阐述了我国发展民族信息安全体系的重要性及建立有中国特色的网络安全体系的必要性,并就此论述了保障网络安全的主要技术手段及其选择原则。 The current computer network security issues, for a country’s information security and economic development has become self-evident. Based on the fundamental changes in the connotation of information network security, this paper expounds the importance of developing national information security system in our country and the necessity of establishing a network security system with Chinese characteristics. In the end, the paper discusses the main technical means of safeguarding network security and its selection principles .