Abstract:Through pot-cultivating seven Sedums species under drought stress, their drought tolerance to learned indexes, including the relative water content of leaves, the penetration of membrane and so on, were comprehensively evaluated and compared. The results showed, under the stress of continuous drought, the penetration of membranes and MDA had a increasing trend, superoxide dismutase activities increased with light drought stress and declined with severe drought stress. According to multiple analysis, the drought resistance of seven species were in the order of Sedum spurium ‘Coccineum‘> S.kamtschaticum Fisch > S. linear Thunb> S. reflexum Tripmadam > S. sarmentosum Bunge > S.spectabile Boreau> S. sexangulare L.