From the rhizome of Smilax stans Maxim., nine compounds were isolated and their structures were determined to be friedelin, diosgenin, 3, 5, 4'-trihydroxy stilbene, 3, 5, 3',4' -tetrahydroxy stilbene, n-butanol- O-?- D-fructopyranoside, sitosterol-3-O-?- D-glucoside,dioscin, methyl protodioscin and pseudo protodioscin on the basis of chemical,spectral methods and comparison with authentic samples.