At present, these panels are mainly extruded by horizontal extrusion using large equipments.In continuous extrusions, the combination method of double billets extrusion and weld forming is suitable to extrude panel products. Compared with conventional extrusion, continuous extrusion presents several advantages, such as energy conservation, no need for pre-heating and no product length limitation. The processing of panel products through continuous extrusion shows advancement in aluminium alloy panel manufacturing.