Aiming at the copper and cobalt oxide ores with high SiO2 and low CaO in an Africa mine, explored the feasibility to produce copper-cobalt alloy through EF reduction smelting. The result shows that it is reasonable to produce copper-cobalt alloy by EF reduction smelting with coke powders as reducing agent and CaO as refractory agent. The most suitable conditions are that the addition of CaO is about 40% of the raw ores and the coke is about 6%~10%, the smelting temperature is 1 500~1 600 ℃ and the smelting period is about one hour. The valuable metal recovery is: Co 90%, Cu 86% and Ni 90%. Meanwhile the erosion conditions for different refractories were investigated, providing a reference basis for the design of the industrial furnace and the selection of refractory materials.