The analysis of remote sensing data show that the salinized soil is estricted by the semiarid climate. the topography trap. the groundwater of shallow layer and so on. The lateral seepage of yellow river has been offering a plentiful groundwater and salt for this area. The surficial and hiding fossil river course as well as the flood fans bring up very complicated microrelief and the hydrogeological features, and cause the degree and the type of the salinization. The factors of macroscopic geologic environment can be changed hardly in this area, but the microscopic geologic environment for the salinization can be transformed to restrain the salinity level. The main target to harness the salinized soil is to control the hydrosaline regime, and adopt measures continualy to desalt the groundwater, So that the salty density of the soil is transfered from the crystal phrase of the salt solution to low density. It is unpractical that the salinized soil can be made a radical cure by one time control work.