Abstract: This paper introduced the developing trend of coal slurry treating equipment under the situation of energy saving and emission reduction in China,focused on the technological breakthrough in the aspects of quick diaphragm filter press,drying filter press and underground water bin slime automatic treating system.The application practice of the three devices above mentioned is the new generation safety and efficiently product in coal slurry treating operation and meet the requirement of energy saving and emission reduction,and its also suitable to treat the viscous coal slurry.