In order to analyze the characteristic of the heavy metal content in wheat grain in Xiaoxian County, 23 samples were collected and done statistics by SPSS software. The results show that the average heavy metal content of lead(Pb),cadmium(Cd), chromium(Cr), zinc(Zn), copper(Cu) in the wheat grain is respectively 0.08565mg/kg, 0.002228 mg/kg, 0.8413 mg/kg, 29.9798 mg/kg, 5.5786 mg/kg. The quality of wheat grain is in good health. The coefficient variation of lead (Pb) is 84.36% which shows the content is not stable and the other elements have a little regional difference. Correlation analysis shows that the correlation coefficient of Zn and Pb is 0.617 at the 0.01 significance level. It shows that Zn and Pb have the same or similar pollution sources. System cluster analysis show that Yanji town and Shengquan town belong to the same category where the mining production behavior is distinguished from other region of sampling point.A