The invention discloses a gasoline hydrorefining catalyst. The gasoline hydrorefining catalyst comprises a carrier and an active component; the active component is loaded onto the carrier, a heteropoly acid is taken as the active component, and an Al2O3-TS-1-graphene composite oxide is taken as the carrier; the specific surface area of the gasoline hydrorefining catalyst ranges from 250 to 500m2/g, the pore volume ranges from 0.5 to 0.8mL/g. The invention also relates to a preparation method of the gasoline hydrorefining catalyst. According to the preparation method, a molecular sieve is uniformly mixed with alumina and graphene, a nitric acid solution and an appropriate amount of water are added, and mixing kneading, strip extrusion, drying, and roasting are carried out so as to obtain the carrier of the gasoline hydrorefining catalyst; the carrier is subjected to dipping with a solution containing the heteropoly acid, and then drying and roasting are carried out so as to obtain the gasoline hydrorefining catalyst. The gasoline hydrorefining catalyst possesses a specific pore diameter, is large in pore volume, is high in hydrodesulfurization activity, and can be taken as a gasoline hydrorefining catalyst.