This paper was to study the effect of water quality and bulk density on saturated hydraulic conductivity (Ks10) and on salt leaching, and study the relationship between Ks10 and leachate EC, Ks10 and leachate pH. Results showed: Ks10 increased with the increment of irrigation water quality; Ks10 decreased with the increase of bulk density of sodic soil when shallow and deep ground water were used; while when distilled water was used, Ks10 value was 0.11 mm/d and 0 mm/d with bulk density of sodic soil ranging from 1.08 g/cm3 to 1.33 g/cm3 and from 1.42 g/cm3 to 1.50 g/cm3, respectively; the values of EC and pH of leachate decreased with the increase of irrigation water quality; when shallow and deep ground water were used, the values of EC and pH of leachate increased with the increment of bulk density of sodic soil; while the values of EC and pH of leachate didn’t vary with the increment of bulk density of sodic soil; the values of EC and pH decreased with the increase of Ks10, the relationships between EC and Ks10, pH and Ks10 follow the exponential function.