The invention relates to a kudzuvine root processing method which is characterized by comprising the following steps: a, crushing the raw materials, namely flushing the fresh kudzuvine root by using water to remove silt, and crushing; b, pulping and separating, namely crushing the fresh kudzuvine root, performing centrifugal separation, and collecting the pulp and kudzuvine residue, so that the pulp and the residue are separated; c, refining, collecting the pulp after the pulp and the residue are separated, adding a potentilla fulgens wall extracting solution, standing, realizing powder and silt separation, and collecting the powder-containing pulp, wherein the potentilla fulgens wall extracting solution is an extracting solution through centrifugal collection after the potentilla fulgens wall is crushed; and d, drying, namely standing the pulp in which the silt and impurities are removed, collecting the precipitate, and drying to obtain the finished product. According to the kudzuvine root processing method, a method for removing silt, small particle kudzuvine root residue and other impurities in pulp by utilizing white alum and other chemical substances in the traditional process is abandoned, a small amount of Chinese herbal medicine potentilla fulgens wall extracting solution is added, and the density distribution of the pulp is changed; and moreover, the kudzuvine root powder, silt and impurities in the pulp are separated at high efficiency, the kudzuvine root powder is high in recovery rate, and the nutrient substances in the kudzuvine root powder are enriched.