The present invention relates to a kind of pyrolysis gasoline C 6 -C 8 Distillate hydrotreating catalyst, the catalyst uses molybdenum, cobalt, nickel, and potassium as active components, and uses silica-alumina as a carrier. Based on the total weight of the catalyst, the catalyst contains 6-22% of molybdenum oxide and 0.1-2.2% of cobalt oxide , nickel oxide 4.0-7.2%, potassium oxide content 0.1-3.0%, silica-alumina carrier content 75-88wt%, carrier mesopores account for 3-70% of total pores, macropores account for 1.5- 55%. The catalyst has good anti-colloid ability, strong anti-arsenic, anti-sulfur, and strong anti-water ability.