Abstract: With the design of xiaobaodang coal preparation plant of Shaanxi Coal Chemical Group Co., Ltd., accurate coal quality analysis and product positioning, applicable coal preparation methods, optimization of process layout, and adoption of domestic and foreign advanced washing equipment, take the road of combination of automation and intelligence. After the coal preparation plant is completed and put into operation, the economic, social and environmental benefits are remarkable. It has become a modern super large coal preparation plant which adapts to coal quality, high production efficiency, intrinsic safety, scientific management, civilization and harmony. This coal preparation plant is a super large coal preparation plant designed and built at one time, which provides reference and reference for the design and construction of Yushen mining area's subsequent super large coal preparation plant.