Pipe-bending machine with touch screen plus CNC modules, dialog-type operation, the program set up simple and easy, and bed structural stability, not easily deformed. Pipe bending and sheet bending it. In the case of pure bending, outer diameter d, wall thickness of t tubes subject to external torque m occurs when bending, tensile stress neutral layer of outer wall σ 1 effect, wall thinning; tensile stress σ 1 neutral layer inside Canal wall, wall thickening. Moreover, the cross-section shape due to the force of F1 and F2 function from round to oblong, large amount of deformation, cracks at the outer wall, inner wall wrinkling may occur. So its use will greatly save our human, material and financial resources, electric power construction, railway construction, boilers, bridges, ships, furniture, decoration and other good choices!