The invention relates to a method for removing an oxidation layer on the surface of a beryllium copper product. According to the method, the oxidation layer on the surface of the beryllium copper product is removed by using a diamond brush roll brushing and grinding method. The method for removing the oxidation layer on the surface of the beryllium copper product integrates deoiling, deoxidation and surface passivation. In the method, the oxidation layer on the surface of the beryllium copper product is removed by using the diamond brush roll brushing and grinding method, the problem that emission of acid waste liquid is brought by soaking in a traditional acid method is solved, the environmental pollution is reduced, and the working efficiency is improved by 3-4 times. The surface of theberyllium copper product processed by using the method is uniform, and the problem that the surface of a strip is oxidated and corroded again because of excessive acid washing, an uneven acid solutionand the like is solved.