Thick sheet plastic forming machne is used in plastic forming of 2-10mm thickness plastic sheets such as bathtub, inner cavity of refrigerator, automatic ornaments, decorative plate of motorcycle, shell of electric slide vehicle, shell of go-kart, shell of switch box and lamps and lanterns, etc. It is suitable for PVC, ABS, PE,PP,PC and acrylic plastic sheets, whose shape and size can be made according to user's order.