Abstract: Some new molecular template polymers were prepared by molecular imprinting technology,using o-vanillin as the template molecule,methacrylic acid as the functional monomer and thylene glycol dimethacrylate as the cross-linking agent.The adsorptive property and selective recognition abilities of the polymers for o-vanillin and its isomer were studied.The results showed that o-vanillin template polymers had higher adsorptive character,higher selectivities and recognition abilities,compared with similar non-template polymer.