The spatial variability of soil nutrients was studied based on Kriging method handled by ArcGIS in a pilot region which located in Longkou county,Shandong Province.Choosing proper Kriging model,verifying of the Cross-Validation and correcting the parameters are important factors influcening accurate analysis. According to this study, the spatial correlations of available N and available K is moderate,the spatial correlation of available P is sharp and that of O.M.is weak.