Material composition (mass fraction): 5% to 12% SnO2, 2% to 8% ZnO, 0.5% to 5% CuO, 0.1% to 1% NiO, 0.1% to 0.5% In2O3, 0.1% to 0.5% Bi2O3, oxidation The particle size is 0.1-10μm, the rest is Ag. The raw material of the present invention adopts multi-phase reinforcement and combines the advantages of each reinforcement phase, so as to achieve the purpose of good processing performance in the production process and excellent electrical properties of the material, and meet the requirements of high-power relay composite rivet contacts, which can be partially or completely Instead of AgCdO, it is used in high-power relays.