Abstract: In order to investigate the quality of reclaimed soil in Xinzhou gold mine, soil samples from the experimental area were collected and tested after three years of reclamation, the contents of Cd, As, Pb, Cr, Cu, Ni and Zn in 10 samples were analyzed. The Fuzzy Weight Vector was determined by using the toxicity coefficient of heavy metals in the comprehensive evaluation method of Fuzzy Mathematics, and the environmental pollution of soil in mining area is evaluated. The results showed that the contents of heavy metals in most samples did not exceed the first grade standard of soil quality stipulated by the state, and the contents of heavy metals in some samples exceeded the second and third grade standards. The average value of CR was 182.54 mg·kg^-1, which was more than 2 times of the background value, the pollution was more serious. There were 5 samples in clean state, 3 samples in clean state, 2 samples in light pollution state, the cleaning rate was 50% and the remaining cleaning rate was 80%. There is a certain degree of heavy metal pollution in the soil of the study area, which needs further treatment and rehabilitation.