The spatial variation of soil salinity in different seasons in Mosuowan irrigation area of Xinjiang was explored by soil sampling in both spring and autumn,and soil salinity was obtained by conductivity analysis,Arcgis 100 software was used for Geostatistical analysis.The results showed that,salt content of the soil profile of the soil layers increased with soil depth,the performance was of the bottom coalescence.The salt content in the southeast of study area was higher than that of the northwest,and it was higher in the spring of 2014 than the autumn of 2013.This was because the temperature was higher in spring than autumn.Groundwater levels in some areas rose by snow melt,making a strong evaporation of salt on the bottom to the topsoil.Salt content values in different seasons consisted with a lognormal distribution,and coefficients of variation were between 66%～92%,with moderate spatial variability.Variation in topsoil was greater than the that of deeper layers.Halfway analysis of soil salt content variance results in 2013 and 2014 in the spring and autumn were simulated by Gaussian model,the exponential model and linear model fitting.Soil salt content of C0 /(C0 + C)values were between 31%～42%.Salt content value showed moderate spatial autocorrelation,0~100 cm soil salt was affected by both natural factors and human factors.The results provided a theoretical basis for soil salinization,improvement and utilization in the Mosuowan irrigationarea.