Total sulphur and available sulphur in the 305 samples of toplayer soils collected from thirteen main types of soil in Shaanxi Province were extracted by 0.01 mol L^-1 Ca(H₂PO₄)₂ and determined.Results indicated that the contents of total sulphur and available sulphur in these soils ranged from 33 to 769 mg kg^-1(av.360 mg kg^-1) and from 4.6 to 157 mg kg^-1(av.29.3 mg kg^-1), respectively.Heilutu soil (Cumulic Haplustolls, ST/1996) and Mianshatu soil (Udipsamment, ST/1996) had the lowest content of available sulphur among these soil types.The ranges of spatial correlation was determined through semivariance analysis of these data and were found to be 531 km for soil total sulphur, and 34 km for soil available sulphur, respectively.Spatial variability for soil total sulphur and available sulphur exhibited a gradual changing tendency, and spatial variation developed in large scale for total sulphur, and in small scale for available sulphur.Soil available sulphur in 13.9% of the total land in Shaanxi Province was lower than the critical value, 18.5 mg kg^-1, for soil sulphur deficiency, implying approx-imately 0.537 millions hm² of cultivated land could be sulphur-deficient in this province.In central Shaanxi Province, especially the west part of Yan'an city, the risk of soil sulphur deficiency is great.