The invention discloses a refrigerator-freezer middle beam die and a forming process thereof, and relates to the technical field of manufacturing processes of refrigerator-freezer accessories. The refrigerator-freezer middle beam die comprises a leveling die body, a stamping die body and a forming die body; a blank is manufactured into a semi-finished product through the three steps of forming, leveling and stamping; and a reinforcement plate is machined and formed through the forming die body, and manufacturing of a middle beam is completed after the reinforcement plate is mounted on the semi-finished middle beam. By arranging a guide column and a material pressing block in the leveling die body, the assembly mode between structures is simplified, the machining procedures are reduced, application of production equipment is reduced, the machining efficiency is improved, the production cost is reduced, and resources are saved; by arranging the reinforcement plate and embedding the reinforcement plate in the middle of the middle beam, the bearing capacity of the middle beam is improved, the safety performance is improved, and the service life is prolonged.