Abstract:The technology conditions for comprehensive utilization of polymetallic copper slag from zinc hydrometallurgy were investigated. Under the conditions including L/S=3∶1, three-stage countercurrent leaching at 80 ℃ for 4 h, the leaching rate of zinc, cadmium, indium, and germanium is 95% above, and 98% above copper can be recovered by the process of extraction, stripping, and electrodeposition after its enrichment into high-concentration copper slag. Cadmium is recovered by zinc powder replacement. The other rare metals elements can be recovered after enrichment. Main metals recovery can reach 90% above, and up to 75% rare metals are recovered.