China has accumulated massive fine grained copper mine tailings stocks because of the past mining activities in this area.The tailings contain a variety of heavy metals, and the mass percent of Cu, which is one of the main contaminants in tailings, is up to 0.2601％ (analysis by XRF).The Cu can pollute soil and groundwater by rain leaching in the form of Cu(Ⅱ), furthermore ,the fine grained copper-ore-tailings can contaminant larger area by wind for its small granularity (＜ 74 μm).