Analysis of chemical constituents in the essential oil of radix campsis were performed by means of GC-MS.29 compounds have been identified.The main constituents are aliphatic compounds.

• 用气相色谱-质谱方法对凌霄根挥发油的化学成分进行了分析，从中鉴定出29种化合物，其主要成分为脂肪族化合物。