The W11S upper roller horizontal moving three roller series plate rolling machine has dual functions of pre bending and rounding, with the upper roller in a drum shape and a drag roller added to the lower roller. By adjusting the drag roller, high-precision products ranging from thin to thick plates can be rolled. Realize NC control, one person operation, simple and reliable, greatly improving efficiency. Add a cone rolling device to achieve the rolling of workpieces with large taper angles. The vertical and horizontal displacement of the upper roller are displayed digitally, and the displacement amount is set to be intuitive and eye-catching.