The structure of W11-10X2000 mechanical three-roll symmetrical plate bending machine is three-roller symmetrical type. The upper roller performs vertical lifting movement at the symmetrical position of the center of the two lower rollers. The output gear of the reducer meshes with the teeth of the lower roller to provide torque for the rolled plate. The machine tool has a compact structure and is easy to operate and maintain. The pre-bending needs to be completed with other equipment.