总结了近年来我国能源发展取得的成绩，研究分析了我国能源发展面临的形势和挑战，提出了当前和今后一个时期能源工作的主要任务。特别强调保证能源安全供应是能源战线的一项首要任务、基本任务和长期任务，同时要大力节约能源，调整优化能源结构，加快能源科技自主创新，扩大能源国际合作，推动能源科学发展，为经济社会健康、持续、协调发展提供保障。

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.