According to security guarantee of public information network system in china , this paper is focused on such issue , five sections as following were considered : one , the security situation of current public network and the urgent issues . two , both national and international main research methods and developing tread . three , objects and basic contents of security guarantee of public information network system 公共网络的安全问题是一个世界性的研究课题，本文针对这一课题，结合作者的实际工作，就我国公共信息网络安全保障问题着重对当前公共网络安全现状与急需解决的问题；国内外研究的主要方法及发展趋势；公共信息网络安全保障的对象和基本内容；公共信息网络安全保障体系结构研究；公共信息网络安全保障中的安全预警体系、应急响应体系和法律保障体系等问题进行了研究和探讨。
