Abstract: In order to achieve the new demand of ‘precision agriculture’ development in Yaodu District, and provide the scientific basis for local soil tillage and crop-growing, geostatistics combined with GIS was applied to study the spatial variability and level status of available Fe, Mn, Cu and Zn in irrigation-silted soil in Yaodu District, Shanxi Province. The results showed that: (1) 88.8% of the samples was short of available Fe, 19.2% of the available Mn samples and 0.8% of the available Zn samples were less than the critical value. The Cvs from mathematical statistics were between 41.5% (available Zn) and 55.5% (available Mn), all available microelement contents belonged to moderate variability. (2) The better theoretical semivariogram models of available microelements were spherical model for Fe, exponential model for Mn, Cu and Zn. The nuggets, ranges and the ratios of C0 and C0+C of the contents of available Zn was 83.97%, the spatial correlation degree was weaker. Available concentrations of Fe, Mn, and Cu had moderate spatial correlation. Four microelements in study area expressed anisotropy. Available concentrations of Mn showed the strongest variability along the direction of 90°. (3) The maps of the soil trace elements with Kriging showed that the contents of available Fe and Cu had a clearly striped distribution trends in the Fenhe River Basin, and a declining trend in river east bank to the west bank. The content of available Fe was very poor, while the content of available Cu was higher, the content of available Mn was higher in the south-east and north-west, the decreasing trend of the content of available Zn was found from southwest to northeast.