从粗毛淫羊藿根的醋酸乙酯部分得到４种已知黄酮甙。由理化性质和光谱分析，分别鉴定为大花淫羊藿甙Ａ，２″鼠李糖基淫羊藿次甙Ⅱ，２″鼠李糖基大花淫羊藿甙Ａ和大花淫羊藿甙Ｂ。除大花淫羊藿甙Ａ外均为本植物中首次分得。 Four known flavonoids were obtained from the ethyl acetate portion of the root of Epimedium. By physicochemical properties and spectral analysis, they were identified as Apigenin A, 2′′-rhamnoyl Epimedium II, 2′′-rhamnoyl Epimedium A and Big Flower Yin. Sheep B. In addition to the large flower epimedium A is the first time in the plant.