Abstract:A rhizobag experiment was conducted on five psammophytes to investigate the pH values, salt content of rhizospheric soil and bulk soil, and to compare the differences between them. The results showed that for all five tested plants, their rhizospheric pH values were lower than those in bulk soil. Electrical conductivity in rhizospheric soil was higher than that in bulk soil , and the differences for Electrical conductivity all reached a significant level (p < 0.05) except Salsola Rathenica Iljin.Concentrations of major ions such as SO2-4,Ca2＋and Mg2＋were enriched in rhizosphere soil. The Cl- / SO2-4, Na＋/ K＋, Na＋/ Ca2＋, Na＋/ Mg2＋ratio indicated that the accumulation of SO2-4 in rhizosphere was more siginificant than that of Cl- . and Ca2＋, K＋and Mg2＋were enriched more significantly than Na＋. This study showed that CaSO4 , MgSO4 , K2SO4 were enriched in rhizospheric soil of desert plants, but the NaCl enrichment was not observed. Lower pH values in the rhizospheric soil improved the micro\|environment of the root system for desert plant and thus facilities efficient use of various nutrients and water by the desert. The salt accumulation in the rhizosphere may be one of the mechanisms for the formation of salt island under a desert shrub canopy.