Plate bending machine

A plate bending machine comprises a supporting seat, one end of the supporting seat is fixedly connected with a supporting plate, the supporting plate is provided with a distance adjusting structure, the distance adjusting structure comprises a supporting block connected with the supporting plate in a sliding mode, the lower end of the supporting block is connected with a bending structure, and the bending structure comprises a bending plate. The two ends of the supporting base are slidably connected with adjusting plates correspondingly, fixing structures are arranged on the adjusting plates and comprise fixing plates, and the supporting base is slidably connected with a first containing plate and a second containing plate which correspond to the bending plates correspondingly. The problems that in the prior art, a bending machine cannot continuously and stably press a plate and bend a part for multiple times in the machining process, the plate needs to be moved frequently, and errors occur in the bending po