Results of the investigation and analysis of the soil samples collected from the vegetable bases in Nanning showed that average contents of heavy metals in the soil are as follows:Cd 0.33mg/kg, Hg 0.15mg/kg, As 27.7mg/kg, Pb 46.7mg/kg and Cr 133mg/kg, suggesting that the soils of the vegetable bases are contaminated to a different degree. The main contaminant is Cd, with a mean single pollution index of 1.10. The average integrated pollution index of the city is 0.91 in Nanning.