Abstract: The process of silver flotation-cyaniding leaching of silver concentrate-copper flotation of leaching tailings is adopted to treat a copper-bearing silver mine，where，large amount of cyanide are consumed by copper，and copper can not easily be recovered under the action of cyanide. Hence，the proposal is that some copper concentrate is firstly obtained by the prior flush flotation from run-of-mine，then following by the optimizing scheme of the original process. The laboratory tests for the above proposal are carried out. The results showed that some qualified copper concentrate with Cu grade and recovery of 25.02% and 43.82% were firstly obtained from raw mines. Meanwhile，copper content in silver concentrate decreased to be a lower level of 1.80%. This method helps to reduce losses of copper and improve the following cyanide leaching environment of silver.

Key words: Copper-bearing silver mine, Prior flush flotation of copper, Silver flotation, Copper content of silver concentrate