For the current construction industry, the new building materials have obvious advantages, and the development prospect is also very optimistic. For the sandwich color steel plate, its core material is also divided into six kinds, they are polystyrene sandwich board, namely EPS sandwich board, which is also the most widely used variety in the current market, as well as extruded polystyrene sandwich board, namely X PS, PU, PIR, PF and RW were used as core materials.The more it is classified, it means that it will be used more and more widely. In fact, the characteristics of the sandwich color steel plate are also very large. First of all, it is light in weight and weighs less than 24kg per square meter, It can fully reduce the cost of the structure, followed by the sandwich color steel plate installation fast, light weight, plug, installation and can be cut at will, which determines its simple installation, can improve efficiency, save construction period, there is also a very important point, its fire resistance, fire resistance, ability is also very strong. The surface materials and thermal insulation materials of color steel composite core plate are non combustible or flame-retardant materials, which can meet the requirements of fire protection regulations. The color steel plate treated by special coating has a new life of 10-15 years, and the service life of the plate is more than 35 years. After that, the anti-corrosion coating material is sprayed every ten years. The advantages of all sandwich color steel plate and its characteristics will certainly have a very wide range Market.