The separation and purification of ginkgo biloba flavone by a functional polymer(the oxide of polymer of rosin allyl alcohol ester) was explored. For functional polymer of rosin allyl alcohol ester, the static adsorption of ginkgo biloba flavone was 22.6 mg · g^-1 and the dynamic adsorption of ginkgo biloba flavone was 4.7 mg · g^-1. For functional polymer of cross-linking polymerized rosin allyl alcohol ester, the static adsorption of ginkgo biloba flavone was 14.2 mg · g^-1 and the dynamic adsorption was 5.5 mg · g^-1. The reused result...