Abstract: In order to improve preparation efficiency of Songxinzhuang coal preparation plant and enrich the range of products,the raw coal properties were analyzed. According to market demand,the products structure was determined. The size range of separation,lump coal and fine coal preparation process were introduced. The results showed that the raw coal of Songxinzhuang coal mine was non- caking and low-ash coal,the degradation of gangue was of frequent occurrence. The lump coal whose particle size ranged from 200 mm to 25 mm was separated by dense medium shallow slot separator,the slack coal whose particle size was below 25 mm was separated by unpressurized feeding three- product dense medium cyclone. The flip- flop screen conducted 6 mm dry screening,- 6 mm particles wasn't be separated. The main products of Songxinzhuang coal preparation plant were 200 mm to 50 mm large coal,50 mm to 25 mm medium- sized coal,- 25 mm clean coal,- 50 mm or- 25 mm mixed coal. The produces could be used in coal gasification,power generation and civilian fields.