s The drought stress, wet and heat stress and cold stress were done on Sedum linera,S.sarmentosum,S. makinoi 'Ogon',S. emarginatum and S. hybridum 'Immergrunchell'. According to observing the plant form and measuring the content of proline, enzyme activity of SOD and Pn, Sedum linera, S. emarginatum and S. sarmentosum were suitable for planted as roof garden in Shanghai.