Abstract: A pyritic slag is sold directly as iron concentrates.The gold,silver,copper,and zinc are not recovered,which is a loss of valuable metal resources.The experiment uses a three-stage process(first-stage acid leaching for copper and zinc removal,second-stage copper and zinc precipitation by sulfurization,and third-stage environmentally friendly leaching of gold and silver) for treatment,and optimizes the test conditions.Under optimal conditions,the copper and  zinc  in pyritic slag,after acid leaching-precipitation,have comprehensive recovery rates of 70.08 % and 67.66 % respectively;good indexes that gold and silver leaching rates are 54.17 % and 56.52 % respectively are obtained when the acid leaching slag is neutralized to pH 9~10 with sodium hydroxide,the liquid-solid ratio is 2∶1,the environmentally friendly gold leaching reagent BK516 dosage is 0.09 %,the leaching time is 18 h.The process solves technical challenges to comprehensively recover and utilize valuable metals in pyritic slag and creates good economic and environmental profits.