The invention provides a carbon-5 petroleum resin hydrogenation method which comprises the steps: dissolving carbon-5 petroleum resin in an organic solvent in a mixer; sending into a fixed bed hydrogenation reactor after preheating; filling the reactor with a nickel-copper series hydrogenation catalyst; sending a hydrogenated material to a stripping tower; recycling the organic solvent after the organic solvent extracted out from the upper part is refined; obtaining carbon-5 hydrogenated petroleum resin at the bottom of the stripping tower. When the catalyst prepared by the method disclosed bythe invention and a carrier having specific crystal form and containing nickel is used, a reactive metal utilization rate can be greatly improved, and catalyst preparation difficulty is reduced; meanwhile, chosen active ingredients are added to achieve a synergistic effect, and the carbon-5 hydrogenated petroleum resin with a low bromine number and good chromaticity and stability is prepared.