The article summarizes China's achievements in energy development in recent years, studies and analyzes the situation and challenges, and sets forth the major tasks at present and in the next period.It especially emphasizes that ensuring safe energy supply is the primary, fundamental and long-term task in the energy field, together with the efforts in energy conservation, optimizing energy mix, speeding up home-grown technology innovations, expanding energy international cooperation and promoting scientific energy development, are of great significance to ensure the energy supply for the healthy, sustainable and coordinated development of the economy and the society.