本文对生长在宁夏境内的黄花棘豆（Ｏｘｙｔｒｏｐｉｓｏｃｈｒｏｃｅｐｈａｌａ）和小花棘豆（Ｏ．ｇｌａｂｒａ）中的毒性生物碱成分进行了分析研究，各分离、鉴定出４种喹诺里西啶类化合物，得出总生物碱成分在风干植物各器官中的含量在０．００５～０．０１％之间，样品的采集年份、季节和产地对其影响不大。本文还从药理学、毒理学和毒代动力学等方面对这２种植物的毒性生物碱进行了讨论印证。 In this paper, the toxic alkaloids in Oxytropis ochrocephala and O.glabra grown in Ningxia were analyzed. Four quinolizidine compounds were isolated and identified, Total alkaloids content in air-dried plants in various organs in the 0.005 to 0.01%, the sample collection year, season and origin has little effect on it. This article also from the pharmacology, toxicology and toxicokinetics and other aspects of these two plant toxic alkaloids were confirmed.