(Building a wide-area condition-aware and self-healing smart grid is inseparable from a reliable and secure network communication system. This article is about smart grids in terms of distributed condition-awareness, advanced metering infrastructure (AMI), and demand response. The demand characteristics of the smart grid are sorted out, the network technology system serving the smart grid is sorted out, and the key technologies of network communication supporting the smart grid are analyzed from the two sides, and suggestions are put forward: first, the bearing power system)