面对我国一次能源以煤为主、能源需求日益增长以及大气环境持续恶化的现实，构建资源、能源、环境一体化的可持续发展能源系统是我国能源的战略方向。本文介绍了基于“煤炭既是能源又是资源”的理念提出的煤炭转化利用新技术——煤炭分级转化发电技术的路线和特点。从节能减排等方面对该技术的发展前景进行了展望，指出煤炭分级转化的发电技术可提高煤炭发电的综合效益，改变煤炭单一用于发电的产业结构，可形成基于煤炭资源化利用发电的新产业链并缓解我国油气等资源的紧缺状况，对于改变和优化国家煤电产业结构、循环经济和节能减排具有重要意义。

In the face of the coal-dominated primary energy structure, increasing energy demand, and serious air pollution, the sustainable development of energy system integrated resources, energy and environment is the direction of China’s energy strategy. This paper introduces a new technology of coal conversion and utilization based on coal staged conversion technology on the concept of “coal is not only energy but also resource”. From the aspects of energy conservation and emission reduction, the development of this technology is prospected. It is pointed out that this technology can improve the comprehensive efficiency of coal power generation, changes the industrial structure and forms a new industrial chain, and ease the shortage of oil and gas in China. It is of great significance to change and optimize the structure of China coal power industry, cyclic economy and energy conservation and emission reduction.