Aim To study the chemical constituents in the rhizome of Bolbostemma paniculatum(Maxim) Franquet.Methods The compounds were separated by repeated silica gel and Sephadex LH-20 chromatographies.The structures of compounds isolated were identified by analysis of their spectral data and chemical reactions.Results Seven compounds were isolated and their structures were identified as β-sitosterol(Ⅰ),daucosterol(Ⅱ),daucosterol palmitate(Ⅲ),β-sitosterol palmitate(Ⅳ),5-hydroxymethyl-2-furaldehyde(Ⅴ),maltol(Ⅵ),n-but...