Abstract: According to the fuzzy feature and gradation feature in the evaluation of soil heavy metals' pollution, heavy metals were analyzed through construction of fuzzy mathematics pollution evaluation model. The results show that a single heavy metal is pollution-free, and mine integrated soil quality grade is one level with evaluation score of 97.034, which is of a safe level. On this basis, single factor pollution index shows that Ni and Pb are slightly polluted in contrast with traditional pollution index analysis. The index of geoaccumulation shows that Pb is moderately polluted, and Nemerow index and potential ecological risk index prove to be pollution-free and slight ecological harm. Studies show that fuzzy evaluation method can not only be evaluated on the soil of heavy metals, but also establish the membership function to describe heavy metal contamination of soil ambiguity and gradual change, which can overcome the shortcomings of traditional pollution index evaluation method, and can be used as an effective evaluation method of soil heavy metals mining pollution levels because it is more objective and accurate than traditional method.