Starches and proteins were extracted and separated from small red bean, large red bean and scarlet runner bean by wet milling method. Physicochemical properties of starches and proteins as well as the differences between them have been studied systemically. 1. 本文选取小红豆、大红豆和荷包豆三种豆类作为原料,通过水磨法提取分离其淀粉及蛋白质,系统研究了淀粉和和蛋白质的各种理化性质及差异。