采用水蒸气蒸馏法和超临界ＣＯ_２流体萃取技术分别从威灵仙中提取出挥发性成分，并用ＧＣ－ＭＳ联用技术对其进行了分离测定。水蒸气蒸馏提取物得率是０．１５％，测定了２５个化合物，超临界提取物得率是０．４％，测定了２１个化合物。结果表明超临界技术提取效率高。该结果与我们的化学分离工作相比，没有得到我们分离的化合物，说明ＧＣ－ＭＣ的应用有其局限性。 Steam distillation and supercritical CO 2 fluid extraction were used to extract the volatile components from Clematis spp., respectively, and were separated and determined by GC-MS. The steam distillation extract yield was 0.15%, 25 compounds were determined, the yield of the supercritical extract was 0.4%, and 21 compounds were determined. The results show that the supercritical technology has high extraction efficiency. Compared with our chemical separation work, this result did not result in our isolated compound, indicating that the application of GC-MC has its limitations.