Steel-skeleton-reinforced heat-preservation and maintenance integrated external wall panel

The utility model relates to a steel skeleton reinforced heat preservation and maintenance integrated external wall panel. Wherein the structure part consists of an upper surface layer, a lower surface layer and a middle core layer, the surface layer is made of polymer cement concrete, the core layer is made of polyphenyl granule lightweight aggregate polymer cement concrete, the whole structure part is wrapped by a steel skeleton, and ribs are added inside the structure part for reinforcement; another part is a thermal insulation part, the heat preservation part is composed of a graphite polystyrene board and a polymer cement concrete protective layer. Wherein the concrete protective layer and the structural part are made of the same material, cold-drawn low-carbon steel wire meshes are embedded into the upper surface layer and the lower surface layer of the plate structural part, alkali-resistant glass fiber gridding cloth is embedded into the exposed surface layer, and the alkali-resistant glass fiber grid