目的:测定黄杞叶不同提取物中主要化学成分的含量。方法:分别以芦丁、没食子酸和齐墩果酸为对照品,采用分光光度法测定黄杞叶95%乙醇提取物及水提物中总黄酮、总多酚以及总皂苷的含量。结果:黄杞叶95%乙醇提取物中总黄酮含量为48.01%、总多酚含量为34.01%、总皂苷含量为20.91%;黄杞叶水提物中总黄酮含量为42.04%、总多酚含量为33.25%、总皂苷含量为17.84%。结论:方法简便、准确、稳定性好、重复性好,可用于黄杞中三大类化学成分的含量测定。 Objective: To determine the content of main chemical components in different extracts of Huangqi leaf. Methods: The contents of total flavonoids, total polyphenols and total saponins in 95% ethanol extract and water extract of Radix Astragali leaves were determined by spectrophotometry using rutin, gallic acid and oleanolic acid as control. Results: Total flavonoids content of 95% ethanol extract of Huangqi leaf was 48.01%, total polyphenols content was 34.01% and total saponin content was 20.91%. Total flavonoids content of Huangqi leaf water extract was 42.04% and total polyphenols content was 33.25% , Total saponin content of 17.84%. Conclusion: The method is simple, accurate, good stability, good repeatability, and can be used for the determination of the chemical constituents in three categories of Huangqi.