Abstract: The power Internet of Things is the core link between the power system and the energy Internet, which supports the organic integration of energy flow, information flow, business flow and value flow. Especially under the development trend of big data, artificial intelligence and energy revolution, in order to promote the scientific, rational and intelligent construction and technological development of the power Internet of Things, this article discusses the functional architecture system and innovative models of the smart power Internet of Things. First of all, from the perspective of cyber-physical integration, the basic concepts and construction goals of intelligent power Internet of Things are proposed. The core is the deep integration of intelligent primary physical systems and intelligent secondary information systems. Secondly, it elaborates the functional architecture of the intelligent power Internet of Things, which mainly includes the physical layer, the perception layer, the network layer, the platform layer, the application layer and the interaction layer. Furthermore, the technical system of the intelligent power Internet of Things is proposed, and the ecological technology is expounded from three levels: primary physical equipment intelligence, secondary information system intelligence, and business application intelligence. Finally, the collaborative innovation of intelligent power Internet of Things and the construction model of the ecosystem are given. This article provides certain references and suggestions for the standardization and standardized construction of smart power Internet of Things.