The invention relates to a forming device, in particular to a hoop stamping forming device. By the adoption of the hoop stamping forming device, hoop raw materials are automatically placed, formed hoops are convenient to collect, and formation of the hoops is uniform. The hoop stamping forming device is characterized by comprising first supporting columns, a workbench, a backing plate, a collecting frame, a stamping mechanism and a feeding mechanism, wherein the two sides of the top of a base are each connected with two first supporting columns, the workbench is connected among the top sides of the first supporting columns, the top side of the workbench is connected with the backing plate, the collecting frame is arranged on one side of the top of the workbench, the collecting frame makescontact with the backing plate, the top side of the backing plate is connected with the stamping mechanism, the top side of the backing plate is connected with the feeding mechanism, and the feeding mechanism is located beside the stamping mechanism. Through cooperation of a downward pressing block, an inner die, an outer die and an electric push rod, the hoop stamping forming device achieves thepurpose of conducting stamping formation of the hoop.