目的　对西藏雪莲花 (Saussureatridac tylaSch Bip .)地上部分化学成分进行分离鉴定。 方法　用色谱技术进行分离 ,用UV ,IR ,EIMS ,ESIMS ,1H NMR ,13 C NMR ,HMQC ,HMBC等光谱方法对化合物结构进行鉴定。结果　从西藏雪莲花地上部分的乙醇提取物中分离得到 2个化合物 ,分别鉴定为雪莲鞘胺醇 (xuelianceramide ,Ⅰ )和chamaemeloside (Ⅱ )。结论　化合物Ⅰ为新化合物 ,化合物Ⅱ首次从风毛菊属植物中分离得到。 Objective To isolate and identify the chemical components of aerial parts of Saussureatridac tyla Sch Bip. Methods The compounds were isolated by chromatographic techniques and identified by UV, IR, EIMS, ESIMS, 1H NMR, 13 C NMR, HMQC, HMBC and other spectral methods. Results Two compounds were isolated from the ethanol extract from the aerial part of Tibet snow lotus, identified as xuelianceramide (I) and chamaemeloside (II). Conclusion Compound I is a new compound, and compound II was isolated from the plants of the genus Zinnia for the first time.