The invention discloses a plastic bending machine, which comprises a frame. A bending baffle is installed on the front of the frame through hinges. Both sides of the bending baffle are fixedly equipped with electric telescopic rods. The rear is fixedly connected with the bottom of the support rod, and a push rod motor is fixedly installed above the front of the support rod. The plastic bending machine, through the setting of the pressing block, the pressing plate, the second heating lamp tube and the second isolation mesh, has the effect that the pressing block can not only press the plastic plate, but also heat the plastic plate, and then through the servo The setting of the motor, and the use of telescopic sleeves, movable telescopic rods, fixed blocks, fixed rods, movable plates, fixed plates, insertion rods, compression springs, pull plates, bearings, rotating rods and fixed plates, so that the plastic plate When bending, the bottom and top of the plastic board can be preheated at the same time to bend the plastic board immediately, and then the plastic board is not easy to break when it is bent.