Abstract: Two-stage hydrogenation process of high pressure hydrotreating and hydrocracking is adopted to produce clean fuels from medium and low temperature coal tars. The technology developed by Fushun Research Institute of Petroleum and Petrochemical (FRIPP) is applied in a coal tar hydrotreating unit with a capacity of 160 kt/a. The <500 ℃ fraction after pretreatment of coal tar was used as a feedstock. Under the reaction conditions of 15.0 MPa, oil/ hydrogen volume ratio of 1 000, hydrotreating temperature of (base+10) ℃ and Sv of (base+0.2)，hydrocracking temperature of (base+30) ℃ and Sv of (base+0.2), the sulfur content and octane number（RON）of the fraction below 160 ℃ is 3.3 μg.g-1 and 65.3, respectively, which could be used as a low sulfur naphtha; the diesel fraction of 160～375 ℃ has a density of 0.852 5 g.cm-3, the cetane number is as high as 49.5, and the solidifying point is -10 ℃, which could be used as a high quality diesel blending component; fraction beyond 375 ℃ with sulfur of 2.6 μg.g-1 and the aromatics of 2.0% could be used as a good raw of lube base oil.