The full range coker distillate hydrotreating technology developed by SINOPEC is used to remove impurities including sulfide, nitride, oxide, olefin, alkadiene, trace metal pollutants, tiny solid particles etc. from full range coker oil. It can achieve high removal efficiency for these impurities, thus produce clean products. Among the products obtained, naphtha can be used as the ethylene plant feedstock, while diesel as the blend of low sulfur diesel, and the heavier fractions (heavy gas oil) as the feedstock for hydrocracker or FCC units.