Abstract: Polyvinyl alcohol(PVA) matrix resins were obtained from the suspension polymerization of vinyl acetate triallyl isocyanurate followed by alcoholysis. Three carboxylic resins with hydrophilic PVA matrix containing hydroxyl groups were prepared by the introduction of diverse carboxylic groups such as carboxylic methyl, succinic and p-phthalic acid. The conversion rates of hydroxyl groups determined by the chemical titrimetric analysis for the 3 matrix resins were 20.0%, 47.6%, 57.2%, respectively. The adsorption characteristics of L-lysine in aqueous solution on the three carboxylic and PVA resins were measured by the static adsorption isotherms. The equilibrium adsorption data were fitted to Freundlich adsorption isotherm model to evaluate the model parameters. The result shows that the adsorption isotherm data can be satis-factorily fitted with the Freundlich equation within a range of concentration 2.0~80.0 mmol/L at 298 K. At the same time, the result of dynamic adsorption of L-lysine on PVA-SuA with the initial concentration under 50.90 mmol/g shows that a pseudo-second-order equation can be used to interpret the kinetic curve and the correlation is good.