Abstract: Seven compounds (Ⅰ, Ⅱ, Ⅲ, Ⅳ,Ⅴ,Ⅵ,Ⅶ) were isolated from the extract of 80% aqueous ethanol of the roots of Sanguisorba officinalic L.by means of silica gel column and prepared thin layer chromatography.Their structures are elucidated on the basis of chemical and spectral analysis(IR, MS, NMR, UVand elemental analysis), and the comparison with authentic samples and references.They are 2,4-dihydroxy-6-methoxyacetophenone(Ⅰ), 3,3',4-tri (O-methyl)ellagic acid (Ⅱ), 3,4,4'-tri(O-methyl)ellagic acid (Ⅲ), Sanguisorbigenin (Ⅳ), Ziyu-glycoside Ⅰ (Ⅴ), Ziyu-glycoside Ⅱ (Ⅵ) and β-sitosterol-β-D-glucoside (Ⅶ).Among them, Ⅰ is found for the first time from Nature and Ⅲ is a new compound.

Key words: Sanguisorba officinalic L., Rosaceae, 3,4',4-tri(O-methyl)ellagic acid, Ziyu-glycosides