用聚丙烯酰胺凝胶电泳方法分析了我国栽培大豆８２个代表品种和野生大豆部分群体的脲酶等位酶。本实验室条件下脲酶快带Ｒｆ＝０．５４—０．５９，慢带Ｒｆ＝０．３６—０．４３，与文献报道一致。所分析８２个品种快慢脲酶变异体约各半，各等位的分布与该品种的产地无显著相关性。在已分析的野生大豆群体中，也发现脲酶存在快带和慢带两种变异。所以大豆脲酶基因的突变可能发生在野生大豆的天然群体里。 Polyacrylamide gel electrophoresis was used to analyze urease allozyme in 82 representative cultivars of soybean and wild soybean in China. Under the laboratory conditions, the urease fast band Rf = 0.54-0.59, slow band Rf = 0.36-0.43, consistent with the literature. The results showed that there were no significant differences in the distribution of each allele and the origin of the cultivars. In the wild soybean populations that have been analyzed, urease has also been found to exhibit both rapid and slow bands. So the mutation of soybean urease gene may occur in the natural population of wild soybean.