According to the captive test,the adsorption and desorption performances of seven kinds of resins adsorbent to EGCG and ECG were studied.The results showed that AB-8 resin was the best.On the base of captive test,tea-polyphenols were used as raw material,AB-8 resin was used as chromatography stuffing and the optimal process conditions: the concentration of tea-polyphenols was 10?mg/ml;the flow rate,10?ml/min and the height of column,35?cm.The product with 80%EGCG and 3%ECG was obtained.