The invention provides a load type palladium ruthenium bimetallic catalyst and a preparation method thereof, and relates to the load type precious metal catalyst. The catalyst employs one of gamma-Al2O3, SiO2, and TiO2 as a carrier for loading bimetal Pd and Ru, and the contents of metal Pd and Ru in the catalyst are as follows in percentages by mass: 0.5-10%. The preparation method is as follows: precursor solutions of Pd and Ru are mixed in order to obtain Pd and Ru precursor mixing liquor; the carrier is pretreated and dispersed in water phase, an alkaline matter is added for adjusting the pH value of the solution to 8-14, in order to obtain carrier dispersion liquid; the Pd and Ru precursor mixing liquid is added into the carrier dispersion liquid for dipping and loading, pumping filtration, washing, drying and reduction are carried out, in order to obtain the load type palladium ruthenium bimetallic catalyst. The catalyst is applied to catalytic hydrogenation reaction, and can be applied to Heck, Suzuki and other carbon-carbon coupling reactions, and the catalyst has good catalytic reaction activity and high stability.