The automatic metal bellow making machine adopts an advanced hydraulic system, which drives the rotation of the main and driven rollers through a hydraulic motor, and uses friction to drive the tube blank to rotate. At the same time, the roller mechanism and the auxiliary wheel mechanism are driven by hydraulic cylinders for axial and radial feed. , The stainless steel tube billet is gradually rolled into shape. The machine has two modes: manual and automatic. The automatic mode adopts numerical control program control, input related parameters, and automatically perform single-wave roll forming. The parameters can be adjusted and can be changed and saved, the waveform is stable, and the size is controllable.