The ores in the shallow part of a gold mine are oxidized to some extent.In order to determine the beneficiation methods and technical indexes for this part of oxidized ores,as well as to recover valuable resources to the maximum extent,experimental research on Nelson gravity separation and flotation was carried out.Finally the process of Nelson gravity separation-flotation of gravity tailings was determined.When grinding fineness of -0.074 mm accounted for 60 %,the gold grade of gravity concentrates was 33.26 g/t,the gold recovery rate of gravity separation was 47.93 %;after the gravity tailings are through once roughing,three times scavenging and twice cleaning,the gold grade of flotation gold concentrates was 51.47 g/t,the gold grade of tailings decreased to 0.57 g/t,comprehensive gold recovery by gravity separation＋flotation was 82.47 %.The quality and recovery index of the concentrates are both good.