Objective: To investigate the chemical constituents of Glechoma longituba. Methods: The dried herbs of Glechoma longituba were powdered and extracted with 95% ethanol,then partitioned with petroleum ether,ethyl acetate and n-butanol. The ethyl acetate fraction was separated by silica gel,Sephadex LH-20 and preparative HPLC. In additional,the structures of isolation were identified on the basis of their spectral data and physicochemical properties. Results: Thirteen compounds were respectively obtained and i...