Abstract: In order to help achieve the carbon emissions peaking and carbon neutrality goals, and in line with the current status of coal preparation technologies and particularly the dry cleaning technologies, an investigation is made in the paper into the ways to improve coal preparation efficiencies and reduce overall costs and energy consumption, and the tactical approaches for realizing low-carbon coal preparation operations. Finally, the suggestions on equipment R & D and popularization, process selection and use of combined processes are put forward.