Abstract: With the advancement of the new round of industrial revolution, IT and OT integration, the industrial Internet has become the trend of the ages, and it is also the core supporting intelligent manufacturing. The industrial Internet connects the industrial control system network and information system through the connection between the industrial system network and the Internet. Network convergence also breaks the relatively closed and credible production environment of traditional industries, bringing network security and industrial security risks into interweaving. Failure to respond effectively to these risks will pose serious risks to the smooth development of various industries, stable economic operations and the overall security situation of the country. Through the introduction of the domestic and international industrial Internet security status and the main threats faced by the industrial Internet, the industrial Internet security risks are analyzed. At the same time, the laws, regulations and standards related to industrial Internet security formulated by China are studied. Finally, the applications of the main industrial security technology are introduced from the four aspects of border control, access management, security monitoring audit and situation awareness.

Key words: industrial Internet, network security, security of industrial control system, monitoring and audit system, security situation awareness

摘要： 随着新一轮工业革命的推进，IT,OT融合即工业互联网成为大势所趋，同时也是支撑智能制造的核心，工业互联网通过工业系统网络与互联网的连通，将工业控制系统网络与信息系统网络融合，同时也打破了传统工业相对封闭可信的生产环境，带来网络安全与工业安全风险交织，如无法有效应对这些风险，会给各行业顺利发展、经济稳定运行以及国家的整体安全局势带来严重风险.通过对国内外工业互联网安全现状的介绍，以及工业互联网面临的主要威胁，对工业互联网安全风险进行了分析，同时研究了我国制定的工业互联网安全相关法律、法规和标准，最后着重从边界管控、接入管理、安全监测审计和态势感知4个方面介绍了主要的工控安全防范技术的应用.

关键词: 工业互联网, 网络安全, 工控安全, 监测审计, 态势感知