One-dimensional perpendicular infiltration process to water with different mineralization degree by uniformity earth pillar experiments was studied. Soil moisture content distribution and infiltration rate infiltrated by different mineralization degree were analyzed. The variance in regular pattern of soil profile salt content as well as desalt depth after infiltration in response to mineralization degree of infiltrated water were carried out at the same time. The results showed that saline water infiltration could transform soil structure and enhance both soil water transmitting ability and moisture holding capacity, but in company with sodium ion in soil increasing, soil water transmitting ability and moisture holding capacity did not depend only on mineralization degree, but rather codetermined by both mineralization degree and sodium ion quantity; top soil salt would be infiltrated by water when mineralization degree lowered about 3g/L, but soil salt was scarcely infiltrated when mineralization degree further increased.