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.