Polystyrene foam plastic sandwich board uses colored steel plate as surface material, close-hole self-extinction polystyrene foam plastic as core material.After automatic continuous forming machine pattern dies colored steel plates, these materials will be applied with high strength binder to form a high-efficiency compound building material. The board is mainly used for public buildings, roof and walls of industrial workshops, clean workshops, and combined refrigerated warehouse, storied buildings, and kiosks. It features of thermal protection, waterproof, fast construction speed, durable and beautiful. The board has different kinds such as splicing type, inserting type, hiding type.