The invention discloses an ultramicro ginger powder processing method; the ultramicro ginger powder refers to the ginger powder with 700mesh to 2000mesh of grain size. The production method comprises the steps: raw material selection, slicing, drying, coarse grinding, ultramicro grinding, sterilization, packaging, etc. The method changes the traditional ginger grinding and processing technologies, injects the coarse ginger particles after coarse grinding into an air flow ultramicro grinding machine to prepare ultramicro powder by pressure or impulsion. The method solves the problems of the resource waste and poor solubility in the traditional ginger grinding processes; after the ultramicro grinding, the ginger powder has the advantages of high release speed of effective components, large release amount, convenient and fast use method, even distribution, etc., and is suitable to be promoted and applied in food, feed, cosmetics, health care and other industries.