Abstract: With the improvement of infrastructure construction, the more complicated infrastructure construction is, the more corresponding risk factors are. In order to create a safe and good construction environment, reduce occurrence of the risks, and enhance the risk management and control awareness of infrastructure staff, the risk control for infrastructure based on the internet of things technology was studied, the risk factors of key construction parts such as high formwork, deep foundation excavation,ect were analyzed, and most of the risks in the construction process were excluded. The intelligent monitoring system introduced in the paper could provide early warning in time before the occurrence of danger, provide early risk warning for the field staff, and also assist the management staff in risk management and control. The automation and real-time characteristics of the internet of things technology improved the frequency of on-site safety monitoring, greatly shorten the time of abnormal response, improved the level of safety monitoring and early warning at construction sites, and formed the overall solution of real-time perception, timely transmission, intelligent identification and analysis of early warning for the risk operation surface of temporary support monitoring in infrastructure construction, which effectively promoted the integration of the internet of things for ubiquitous electric system power and infrastructure work of power transmission and transformation projects.