Abstract: With the continuous upgrading and transformation of rural power grid, the intelligent level of low-voltage substation equipment and power supply service capacity have been significantly improved. At the same time, with the development of economy, the way of electricity consumption of residents is changing. The traditional power grid management mode has been unable to meet the needs of the new era. It is urgent to apply a series of advanced technologies such as IOT sensing to the construction of low-voltage substation area. To meet the needs of users as the starting point, fully explore the value of power consumption data of residential users. Explore new equipment operation modes. The purpose is to improve the efficiency and quality of residential power consumption. Help build a new power system.