采用比色法和薄层扫描法测定并比较了3个产地的雷公藤根和昆明山海棠根中主要有效成分总二萜内酯和雷公藤内酯醇的含量，结果表明贵州黔东南州产的雷公藤根中总二萜内酯和雷公藤内酯醇的含量最高，分别达到0.035%和0.0030%，值得开发利用。

Contents of total diterpenes and triptolide of radix Tripterygium wilfordii Hook. f. and T.hypoglaucum (Levl. ) Hutch. in three regions were determined quantitatively by colorimetric method and TLC densitometry. Results snowed that radix T. wilfordii from Qian Dongnan contains 0.035% total diterpenes and 0.0030% triptolide, which are the highest among the plants in three regions. The study provides some scientific basis for utilization of this plant.