The invention provides a process method for gear blank forming and relates to a rolling machine for the gear blank forming. When a gear blank (1) is formed, a cutting part is utilized to cut a gear blank machining raw material into a gear blank original piece which is heated and forged into a pre-forming gear blank. The process method further includes a step of conducting rolling on the pre-forming gear blank. During rolling, a wheel disc roll (5) and a main roll (6) of the rolling machine (4) rotate continuously under the control of a controller (7) to conduct rotating rolling on the wheel disc portion (8) and the end face portion (9) of the gear blank (1) to manufacture the gear blank (1). By means of the process method and the rolling machine, the gear blank reasonable in margin distribution and excellent in performance is obtained, the machined gear blank is high in material compactness, metal components and crystal structures are even, the metal fiber streamline structures of a wheel disc, a rim and a flange are good, and the mechanical strength of the gear blank is improved.