Abstract: In recent years, with the adjustment of industrial structure and the rapid development of new energy, the load characteristics of Henan power grid have changed significantly. Carry out the difference analysis of the power load of the whole network and the provincial network, and explore the evolution of the power load characteristics of the provincial network based on the analysis of the power curve of the sub-industry and sub-industry. In addition, considering the economic development goals, the impact of energy conservation and consumption reduction, and the natural population growth, the medium and long term industrial power consumption forecasting method and the 8760 power load curve forecasting method are studied and proposed, in order to provide decision-making reference for power grid economic planning, medium and long term power trading, and user power consumption curve optimization.