Abstract:Six compounds were isolated and identified from dried roots of Cucurbita foetidissima Hbk,by means of UV,IR,1H and 13C NMR,MS,and chemical methods.They are cucurbitacin B(I),Bryonolic acid(II),22-dihydrospinasterol,24α-ethyl-5α-cholesta-7-en-3β-ol(IIIa),24a-ethyl-5a-cholesta-7,trans-22-dien-3β-ol(IIIb),22-dihydrospinasterol,24a-ethyl-5a-cholesta-7-en-3-O-β-D-glucoside(Ⅳa),24a-ethyl-5a-cholesta-7,trans-22-dien-3-O-β-D-glucoside(Ⅳb).