Exploring the mechanism of soil salinization in southern oasis area is of great significance for the development and improvement of saline land． In this paper，the characteristics of capillary water upward movement are studied in the homogeneous sandy loam soil through indoor experiments of soil pillar under the condition that the soil bulk density( 1．3，1．4，1．5 g /cm3) and total dissolved solids( TDS) ( 0．5、1．5、3．2、8．1、21．2 g /kg) were conduced． The results showed that the capillary water rise height increases with time，but the growth rate decreases with increasing time; capillary water rise height decreases as soil bulk density increases under the same TDS，the salinity of 1．5 g / L of capillary water rise height maximum when the soil bulk density is 1．3～ 1．4 g /cm3，the soil bulk density for 1．5 g /cm3，salinity 0．5 g /L of capillary water rise height maximum; there is a power function relationship between the height of upward capillary water and time when soil bulk density is 1．3 g /cm3，but exponential function can be seen when soil bulk density is 1．5 g /cm3． Capillary water rise rate decreases as the soil bulk density increases under the same TDS． Soil salt content accumulated on capillary water wetted front，salt accumulation rate increases with TDS and infiltration time． The research results can provide references for the improvement of soil salinization in the oasis of Southern Xinjiang．