由于计算机的普及,其应用范围逐渐涉及到人们日常生活中的各个领域,使计算机网络安全问题逐渐成为人们的关注焦点。当人们享受计算机带来的便捷同时,还应加强对网络安全的维护,避免网络信息受到威胁。基于此,作者结合自身实践经验,对计算机网络安全分层评价防护体系进行分析与探究,以供人员参考与借鉴。 Due to the popularization of computer, its application scope has been involved in all fields of people’s daily life gradually, making the problem of computer network security gradually become the focus of attention. When people enjoy the convenience brought by the computer at the same time, we should also strengthen the maintenance of network security, to avoid the threat of network information. Based on this, the author, combined with his own practical experience, analyzes and probes into the computer network security hierarchical evaluation and protection system for reference and reference.