The invention relates to an Internet of Things method and system. Through techniques, complex Internet of Things associated elements are systematically sorted; analysis is carried out from different dimensions; an application-level service referable Internet of Things system architecture model is set, the Internet of Things capability problems of good comprehensive perception, convenient access, reliable transmission, data value, intelligent processing, business closed loop, system guarantee, sustainable development and the like are solved, the fusion of a physical world and a digital world isbetter realized, and the wisdom of a human body is materialized and extended.