随着物联网技术和应用的发展,已经掀起了一场IT革命,促进了社会经济发展,并改变了人们的生活,物联网技术和产业正受到从政府到企业和科研机构等不同层面的重视。保证物联网安全是推动物联网健康发展的重要前提。本文面向目前联网目前主流体系架构,从从感知层、传输层和应用层三个层面研究了物联网面临的安全威胁,并提出了相应的安全措施,为建立物联网的安全架构提供了理论参考框架。 With the development of Internet of Things technologies and applications, an IT revolution has been launched, which has promoted social and economic development and changed people’s lives. Internet of Things technologies and industries are being given different attention from different levels of government, enterprises and research institutes. Securing IoT is an important precondition for promoting the healthy development of IoT. This article addresses the current mainstream network architecture, from the perception level, transport layer and application layer three aspects of the study of the Internet of Things security threats, and put forward the appropriate security measures for the establishment of IoT security architecture provides a theoretical reference frame.