Spatial variability of silt and clay contents, macroaggregate and microaggregate contents and organic matter content measurements was studied by using stochastic theory and rime series analysis theory. The measurements were made on thirty sites (1×1 meters in size) selected at random in a silty-loamy paddy soil with an area of 127 m×71 m. Spatial variability of each soil property were characterized statistically by autoeorrelation function, semivariance function and Their diagram. The results show than the physical properties of paddy soil are nor completely disordered in field. There are spatial correlation for measurements at all the observation sites. The limit distance of spatial correlation of silt, clay, macroaggregate, microaggregare and organic maser content are 25, 25, 27, 23 and 37 meters, respectivily.