The present invention discloses a method of removing astringent tastes of peanut skins. The method comprises the following steps: the peanut skins are soaked using water, the soaked peanut skins are subjected to a microwave pretreatment, tannase is added, then zinc lactate and calcium lactate are added, the mixture is subjected to a microwave assisted enzymatic treatment, the treated mixture is filtered, and the filtered mixture is centrifuged to remove the astringent tastes of the peanut skins to obtain a peanut skin extract free of the astringent tastes. The present invention provides the high-efficient peanut skin astringent taste removing method. The method is good in astringent taste removing effects, at the same time can obtain the peanut skin extract free of the astringent tastes and rich in proanthocyanidin, and can widen the application of the peanut skins in food. The prepared astringent taste removing peanut skins can be applied in the food industry of health-care products, peanut drink, peanut ice cream, peanut milk tea, etc.