[Objective] The research aimed to optimize the extraction process of flavone in Phyllanthus urinaria L.based on pectinas method.[Method] The flavone in Phyllanthus urinaria L.was extracted by using wateras the extraction agent,and pectinas was added during extraction.The orthogonal test was used to study the effects of extraction temperature,pH value,the ratio of material to liquid,the concentration of pectinase and extraction time on the extraction ratio of flavone in Phyllanthus urinaria L..[Result] The r...