A lot of smelting converter slag is generated in the copper smelting process.Direct stacking causes not only resource waste but also environment pollution.According to the characteristics of the copper smelting converter slag in Shandong Humon Smelting Co.,Ltd.,the flotation process of once roughing and once scavenging is adopted to recover gold.The results show that the major factor influencing the flotation index is the fineness of grinding as well as the type and dosage of the collector,which is followed by the dosage of the activator。The optimal process parameters are as follows:the grinding fineness -0.074 mm accounts for 90.4 %,butyl xanthate dosage is 200 g/t,copper sulfate dosage is 250 g/t,lime dosage is 500 g/t,under which the gold grade of the obtained gold concentrate is 13.7 g/t,the gold recovery rate is 92.6 %,the gold grade of tailings is 0.02 g/t,the gold loss rate is 0.3 %.The process realizes comprehensive utilization of secondary resources and at the same time creates certain economic benefits.