The adsorption properties of LS-303B resin for Ginkgo Flavonoids were studied in detail .The results show that in pH 2~6 HCl medium,the static adsorption capacity was 588.23 μg/g .The adsorption isotherms approximately fit the Freundlich equation with a correlation coefficient larger than 0.98 in the range of experim-ental concentrations. When the equilibrium concentration of flavonoids are larger than 8.0 μg/mL,the adsorption isotherms also fit the Langmuir isotherm equation. Column packed with LS-303B res...