Abstract: Salt tolerance of 7 Gramineous pastures during germination and seedlings has been studied with 0.6%,0.9%,1.2%, 1.5% and 1.8% mixed salt solution （71%NaCl, 3%CaCl2,4%MgSO4,22%K2SO4）. The membership function was applied according to the germinating stage, germination rate, seedling height and root length, germination trend, seed vigor etc.The results showed that the salt tolerance ability among 7 plants was in order of Festuca. arundinacea〉Agropyron elongatum〉Puccinellia tenuiflora〉 Poa crymophila〉Horcleum brevisubulatum〉Agropyron morgolicum〉Elymus duhuricas.