Processing method of pure natural lightly-fermented walnut milk beverage

The invention belongs to the technical field of food processing, and particularly relates to a processing method of a pure natural lightly-fermented walnut milk beverage, which is characterized in that fresh walnut kernels or crushed walnuts are used as raw materials, and the walnut milk beverage is prepared through the steps of peeling, impurity removal, pulping, primary sterilization, cooling, fermentation, secondary sterilization, auxiliary material addition, homogenization, vacuum degassing, heating and filling, and secondary sterilization. According to the preparation method, peeled walnut kernels or crushed walnuts are adopted, so that the astringent taste in the walnuts is effectively removed, and the color of walnut milk is improved; and a certain amount of color protection liquid is added, so that the finally obtained walnut milk is white, slightly gray and bright in color. And multiple times of sterilization are carried out in the process, so that the breeding of bacteria in the walnut milk beverage