Abstract: To increase the raw coal clean utilization and economic benefits of Yidong coal mine, the design of coal separation process was performed based on the coal property analysis. No. 1-2 and No. 2-2 coal seams both have extra-low ash content, high volatile content, and extra-low sulfur content. The two coal can be used as high grade heating coal. The two both have middle washability. Based on the coal property analysis, the separation process was determined with dense medium shallow groove separator for 150-13 mm lump coal, pressurized-fed two-product dense medium cyclone for 13-1.5 mm slack coal, spiral separator for 1.5-0.15 mm coal and press filter for 0.15-0 mm coal slime. The proposed separation process is used in the coal separation plant construction. The product quality is suitable for the market. The design provides a reference for the design of similar coal separation plant.