125.73mL。In order to improve extract efficiency of apple polyphenols, the dynamic law of apple polyphenols (AP) adsorption and desorption to NKA—9 macroporous resin was researched to establish a mathematic model. The Response Surface Methodology(RSM) was used to investigate the effects of feeding rate, sample concentration and pH on the adsorption properties of macroporous resin and the effects of flow rate, eluent concentration and elution volume on the desorption properties of macroporous resin for apple polyphenols. The results showed that the optimum adsorption conditions were the feeding rate of 1.10mL/min, sample concentration of 2.50mg/mL, pH 4.83. The optimum desorption parameters were the flow rate 0.61mL/min, eluent concentration 59.48%, elution volume 125.73mL. In conclusion, the NKA—9 macroporous resin can be used as the best material to extract the apple polyphenols.