The aim of the current study was to optimize the hydrolysis conditions of tannin from Areca cat-echu and explore effect of hydrolysis on antioxidant activity of polyphenols from areca,the orthogonal array de-sign was carried out to optimize the hydrolysis technology of tannin from areca with the acetic acid being hy-drolysis reagent and the content of tannin being test index.The results showed that the optimal conditions of hy-drolyzing tannin were 40 min 70 ℃and the ratio between glacial acetic acid and sample 2.5,under which the content of tannin was decreased from 36.80 % to 28.86 %.This results can provide beneficial reference for the theory research and production of plant polyphenols.%为探讨槟榔鞣质水解最优条件以及水解对槟榔多酚体外抗氧化活性的影响，以醋酸为水解剂，鞣质含量为试验指标，利用正交设计对槟榔鞣质水解工艺进行了优化。结果表明：在70℃下，用2．5倍体积的冰醋酸水解40min，鞣质质量分数由36．80％降至28．86％。研究结果可为植物多酚的理论研究与生产实践提供有益的借鉴。
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