The total Se contents of soils in Guizhou Province range from 0.064mg/kg to 1.326mg/kg, with an average of 0.369mg/kg, tending to increase as the terrian decends from north to south east. The whole province can be divided into four Se regions: (1) the region of low Se content; (2) the region of medium-low Se content; (3) the region of medium Se content; and (4) the region of medium-high Se content. In general, most of the soils in Guizhou have a medium Se level, and only a small part belong to Se-rich soils. Besides, there exists some distribution of low Se content soils in Guizhou province.