The invention provides a large-curvature three-dimensional hook face multi-step forming method based on a gradually-changed mold molded face, and belongs to the field of metal plastic working. Large-curvature three-dimensional hook face parts are difficult to form, and various forming defects, in particular to the corrugation defect, are extremely prone to occurrence in the forming process; and in a traditional drawing forming method, even though large-curvature hook faces can be machined, complex blank pressing molds are needed, and the method is suitable for thin-plate forming and cannot be used for forming medium and thick plate hook face parts. The method is based on a mold with the adjustable dispersed type molded face, the mold molded surface is adjusted step by step to conduct multi-step forming, and the shapes of the hook face formed in all forming steps are gradually changed, so that the deformation amount of plates in all forming steps is smaller, and the corrugation defect is avoided; and after multi-step oppositely-pressed forming is carried out on the plates, the large-curvature three-dimensional hook face parts are obtained. The method is suitable for forming the medium and thick plate hook face parts and also suitable for forming the thin-plate hook face parts.