Phyllanthus emblica L.is rich in various natural antioxidants such as polyphenolic compounds.This experiment applied ultrasonic assisted the emblic leafflower fruit polyphenol was extracted with ethanol,and using the response surface method to optimize the extraction results improved,to obtain the parameters of the excellent conditions,mainly for the dry-ing temperature of 80℃ emblic leafflower fruit pulp,60％of the alcohol concentration,solid-liquid ratio 20∶1,ultrasonic ex-traction time is 24 min and all the sons of required temperature 45℃ of ultrasound.Under the experimental conditions,yield of polyphenols from emblica was 10.40％,which was almost the same as the ideal prediction value of 10.39％.The established regression model has a good fitting degree.
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