Abstract:China is short of oil and natural gas resources and relatively rich in coal reserves. For a long time to come, coal will be still at the dominant position in the energy consumption structure in China. Clean and efficient utilization of coal is the main content of energy production and consumption revolution. It not only is an important way of clean and efficient utilization of coal, but also has a great significance to national energy security, sustainable economic and social development. The article analyzes the research status of coal clean and efficient conversion related technologies worldwide, as well as the layout of China's efficient coal conversion, the research direction, and the development trend, in order to technologically support the improvement of clean and efficient conversion level of coal and the acceleration of energy consumption revolution in China.