Abstract: The salt-tolerance capability of Limonium bicolor was studied by germination under NaCl stress.Brine irrigating in bole and plant in the different salt soil at three critical growth stages.The results showed that under high dendity NaCl stress the inhibitive effect on seed germination was obvious.The seed germination rate was in negative relation to NaCl content.The appropriate parameters,limit value,critical concentration of salt stress is repectively 0.49%,1.30%,2.11%;The results of pot experiment showed that L.bicolor had no obviously salt damage less than 2.0%.It only displayed low biomass of high concentration of NaCl stress.The treatment of concentration was less.The majority was close to dead in 2.4%.The results of plant experiment showed that the salt-tolerance limit value of adult-plant is1.7%-1.8%.L.bicolor has high value in directoring the large-scale plant in flat saline soil.