With the impact of the economic development model change，industrial structure adjustment and environmental constraints，the development characteristics of Henan energy needs，structure and power demand is under profound changing. Industrialization and urbanization is still accelerating for a long time in the future，the energy needs and power demand will still remain rigid growth. Based on the analysis of the development characteristics of main developed countries and advanced provinces，this paper uses economic method to predict energy demand and power demand of Henan in medium and long term，also proposes policy recommendations on energy supply security.