The invention belongs to the technical field of floor, in particular to a novel composite floor, a die and a
processing method thereof. The substrate of the composite floor is a plastic-wooden plate, the
surface layer of the composite floor is a
solid wood plate, and an elastic layer is arranged between the substrate and the
surface layer. When the composite floor is processed, raw materials such as PVC resin and so on are mixed and extruded to obtain a PVC plastic-wooden plate; the PVC plastic-wooden plate taken as the substrate and the
solid wood plate taken as the
surface layer are placed into the die respectively, and
polyurethane foam materials are injected to a space enclosed by the
solid wood plate, the PVC plastic-wooden plate and the die through a passage on a base of the die, and is foamed; and the composite floor is pressed by a press
machine after the
polyurethane foam materials are foamed fully. The invention has simple
processing and manufacturing, high production efficiency and low production cost; and the obtained composite floor is safe, environment-friendly, moistureproof, waterproof and mothproof, has soft and comfortable foot feeling, good temperature insulating effect and high service performance, and has good effect of vibration reduction and sound insulation because the
polyurethane foam materials play a role of vibration reduction in the middle layer.