Fabricated light energy-saving thermal insulation composite external wall panel

The utility model discloses an assembly type light energy-saving thermal insulation composite external wall panel, and belongs to the field of assembly type external wall panels. The fabricated light energy-saving heat-preservation composite external wall panel comprises an inner core layer and a structural layer arranged on the outer side of the inner core layer, and a separation net is arranged between the structural layer and the inner core layer; the inner core layer comprises a heat preservation layer and a protection layer, the protection layer is arranged on the outer side of the heat preservation layer, a plurality of first connecting columns protruding outwards are arranged on one side of the protection layer in the transverse direction, a plurality of sleeves recessed inwards are arranged on the other side of the protection layer, second connecting columns are arranged in the sleeves, and the protection layer and the structural layer are connected through studs. According to the assembly type light