The current situation of oil use in coal chemical enterprises was analyzed,and the common problems existing in the use of lubricating oil in coal chemical enterprises were pointed out,such that many types of oils are used,the performance grade of the oil used is high,and economy of the oil used is low.The idea of oil selection and optimization in coal chemical enterprises was put forward,which is based on “minimizing oil types,more optimized equipment lubrication,and lower oil cost”.The optimization of oil product selection can reduce the annual cost of oil products in coal chemical enterprises,reduce the wrong oil addition on site and improve the lubrication reliability of equipment.