The content of five heavy metals of copper,zinc,lead,cadmium,and chrome in the soil and water body near a copper ore mine tailings pond was evaluated using fuzzy comprehensive evaluation method.The chemi-cal forms of the heavy metals in the soil were analyzed as well.The results showed that the heavy metal pollution in water and soil occurred in a different degree.The soil right under the mine tailings pond was contaminated seriously to reach the fifth class and the major pollutant was copper.The soil near the pond was less polluted to meet the fourth class with the highest concentration of cadmium.The soil in a further downstream of underwater was least contaminated to meet the third class with the same main pollutant of cadmium.The Fe -Mn oxides fraction,residu-al,and exchangeable forms of heavy metals was mostly found in the slag soil.The proportion of exchangeable form of copper is low (around 0.24%).The water in the pond,the leakage water under the pond,and the downstream water body were all seriously contaminated to reach the fifth class.Copper,lead,and cadmium were mostly found in the water of the pond.Meanwhile,cadmium was the major pollutant in the leakage water under the pond and the downstream water body.%运用模糊综合型评价法对某铜矿尾矿库区土壤和水体中 Cu、Zn、Pb、Cd、Cr 5种重金属含量进行评价以及尾矿库矿渣泥土重金属化学形态分析，结果表明：铜矿尾矿库对周边土壤和水体有不同程度的重金属污染，矿库矿渣泥土为重污染 V 类，其污染主导因子为 Cu；尾矿库周边植被覆盖土为中污染Ⅳ类，其主导污染因子为 Cd；矿库渗漏水下游土壤和远离尾矿库区土壤为轻污染Ⅲ类，其主导污染因子为 Cd；矿渣泥土重金属各形态以铁锰氧化物结合态、残渣态、可交换态为主，其中 Cu 的可交换态所占比列极小，为0.24％；尾矿积水、尾矿库渗漏水和尾矿库渗漏水下游溪水均为极严重污染5级，尾矿积水中主导污染因子为 Cu、Pb、Cd，尾矿库渗漏水和尾矿库渗漏水下游溪水主导污染因子为 Cd。
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