Abstract: In order to improve energy- saving efficiency of steam coal preparation plant,reduce energy loss in each link of production and consumption,promote the clean and efficient development of steam coal preparation,a 10 Mt / a coal preparation plant was chosen as research object. The main energy- saving methods were provided from the aspects of plant layout,production process and the choice of technological process,key energy- consumption equipment. The results showed that the major energy- saving ways of steam coal preparation included reasonable general layout,advanced production technologies,production process that adopted to coal quality and market changes,efficient equipment,strengthen energy management.