Abstract:the process of preparing copper sulfate and zinc sulfate from the electrolytic copper waste liquor leaching converter dust was proposed directing at the composition of converter dust component in this paper. The effects of the amount of electrolytic copper waste liquor, leaching temperature and leaching time on the leaching rate of copper and zinc were studied; due to the high content of arsenic in the leaching solution, the process of the precipitation of arsenic by adding lime milk was used, and the solution containing copper and zinc was obtained after filtration and washing. Copper and zinc were separated by ZJ988, and the products of copper sulfate and zinc sulfate were obtained by concentrated stripping solution and raffinate and crystallized. The technology can not only utilize the copper and zinc in the converter dust, but also utilize the sulfuric acid in the electrolytic copper waste liquid, which can realize the comprehensive utilization of the converter dust and the electrolytic copper waste acid in the copper smelting plant.