Abstract: The ore property of gold is a typical refractory gold ore in Qinghai province, and the flotation recovery is lower in the initial stage of production. Based on the flotation tailings of ore properties to carry out agent for environmental leaching gold test research and environmental protection of gold leaching agent production practice shows that flotation tailings of gold leaching was 53.95% and total gold recovery was 92.7%, the leaching of the production cost reduced 6 yuan / t, the annual economic benefits increase 378 million yuan, achieved the flotation tailings leaching environmentally clean production.