The temporal and spatial variation of the accumulative soil salinity for winter wheat farmland with different period of drip irrigation in Qitai county of Xinjiang province were studied.The periods of drip irrigation covered 1 year and 5 years respectively.And the soil were sampled along the soil profile with the different soil depth 0～10,10～20，20～30，30～40，40～60 cm.The research results showed that the soil salinity with different period of drip irrigation accorded with logarithm normal distribution.For the drip irrigation for one year,the accumulative soil salinity was low with the increasing of soil depth.For the drip irrigation for 5 years,the accumulative soil salinity along the soil profile fit with a parabola wave.The former was with weak variation,and was accorded with the spherical model and Gauss model,R2≥0.76.The latter was with medium variation,which was met with the spherical model and Gauss model,R2≥0.75.The C0/(C0+C) of soil salt content showed moderate and strong spatial autocorrelation,which showed that soil salt was affected by both structure factors and random factors.The results could provide theoretical basis and data reference for scientific management and rational utilization of soil salinization.