Introgression lines derived from somatic hybrids between Thinopyrum ponticum Podp. (Agropyron elongatum (Host) Nevishi) and Triticum aestivum L. cv. Jinan 177 were screened for salt-tolerance in hydroponic experiments. Their growth rates, salt-tolerance index and the content of free proline, Na+, K+ and Na+/K+ in the leaf were compared with those of wheat cv. Jinan 177. The lines were tested under natural saline conditions in two locations. One line expressed higher salt-tolerance than its parental wheat and a check salt-tolerant cultivar. Karyotype analysis showed that the two lines possessed 42 chromosomes of wheat introgressed with small chromosome segments from Th. ponticum. We suggest that these two lines show stable inheritance of salt tolerance, and that this salt-tolerance has been transferred from Th. ponticum into wheat.