Abstract: Aiming at the specific issues of severe saline land in Lubotan of Shaanxi Province, in the last 10 years, the treatment model of changing drainage to impoundment has been applied with a lot of experimental observation and the key field experiment. According to the observation data, the changes of the moistures content, salinity, ion content of the soil, as well as pH value had been analyzed in different depth of different fields at different times. After treatment, the salinity, pH value and ion content of soil were decreased, and soil organic matter was increased Therefore soil quality was improved remarkably. The results showed that the effect of the treatment of saline land was obvious in Lubotan under “changing drainage to impoundment” treatment model.