The paper took the cyanide leaching residue of gold-silver-iron polymetallic oxide ores in Yunnan as the research subject.According to their chemical composition,physical composition and grain distribution,the process of pre-classification desliming-weak magnetic separation-intense magnetic separation is used to treat the ores.Under optimal conditions,the magnetite concentrate with productivity of 8.49 % and TFe grade of 64.15 % is obtained;the limonite concentrate with productivity of 18.32 % and TFe grade of 52.57 % is obtained;and the TFe recovery is 45.54 %.The process achieves efficient recovery and utilization of the iron from cyanide leaching residue,improves the level of comprehensive utilization of resources.