Power station operation and maintenance management is an important scenario for the application of Internet of Things technology.Currently,there are many IoT product manufacturers and technical routes,which cannot integrate data well to support business and professional applications.At the same time,it cannot effectively control the security of data.To this end,based on the actual needs of power plant maintenance,this paper builds a cloud-edge collaborative IoT architecture based on edge agents.Through multi-modular communication components and standardized access methods,we study the Cloud-Edge Cooperative Networking IoT cloud-edge collaboration mechanism based on the IoT model,thereby achieving the purpose of standardized access to IoT equipment and standardized management of perceived data,providing strong support for power plant operation and maintenance management,and improving the safety management level of construction sites.Through case analysis of actual engineering projects,it is proved that the research results of this paper have strong value in practice and for promotion.