Abstract:Objective:To study the components in the root of Pedicula dicora.Methods:Column chromatography with silica gel and polyamide was employed for the isolation and purification of ingredients.The structures were elucidated by spectral method.Result:Three iridoid glycosides were obtained and elucidated as mussaenoside,shanzhiside methyl ester and lamalbid.Conclusion:All the three compounds were separated from P.dicora for the first time.