Abstract:Smart grid is a new trend of Power Grid Corp construction. It has strong flexibility, accessibility, reliability and profitability. With the advent of the information age, the construction of smart grid has risen to the national strategic level. In order to speed up the intelligent construction of power grid, realize the integration of power flow, information flow and business flow, by analyzing the current research status and advantages of Internet of things at home and abroad, a kind of power network architecture oriented to the construction of smart grid is proposed, and the intelligent sensor, mobile Internet, mobile terminal and radio frequency are introduced. Radio Frequency Identification and other equipment are applied to the construction of power grid, and are highly integrated with the physical grid. It has been applied and realized. It can monitor the distribution network in real time, quickly locate the fault section, quickly restore the power supply function and so on. The application of the power network architecture is beneficial to the optimization. The allocation of power resources, the improvement of service quality, further meet the needs of users" electricity, and achieve the safe, reliable and economical supply of electricity.