The polystyrene foam board is made of pellets containing a volatile liquid foaming agent and expandable polystyrene. It has the characteristics of light weight, good heat insulation, excellent sound insulation and strong low temperature resistance. It also has certain advantages of elasticity, low water absorption and easy processing. Because the EPS board has the first excellent thermal insulation performance, and is light in weight, easy to cut, easy to paste, it is widely used in energy-saving buildings. The Foam Air Cooling Block Molding Machine is CE certification and quipped with new type air cooling system without condenser to achieve the possibility to produce dry and lower internal tensioned blocks.