Abstract: According to the population distribution characteristics of halophytes and soil salinity analysis in the Tumochuan Plain, the dominance of spatial distribution of salt-tolerant plants increased with the increasing soil salinity, and the ionic structure in plants was related to that in soil. The plants like Suaeda glauca Bge., Saussurrea salsa （Pall.） Spreng. and Artemisia anethifolia Web. which had higher concentration of K＋＋ Na＋ and Cl- tended to have stronger salt tolerance. The salt content in plants increased with that in soil, and the amplitude of salt content in plant was larger than that in soil. The plants having stronger salt tolerance had larger amplitude of salt content, which indicated plants could enrich corresponding ions in soil.