Kasner external wall insulation decorative panel is a kind of modern wall panel and also a newly developed lightweight construction material these few years. “Kasner panel” becomes worldwide popular so quickly by the characteristics of time-saving, low cost, beauty and durability. “Kasner panel” is not only suitable for external wall decoration of various constructions such as residence complexes, superior villas, scenic spots architectures and office buildings, but also suitable for refurbishment of old buildings. The surface of “Kasner panel” is the high quality metal plate with special layer processing of high durability silicon resin paint and colorful embossed finish treatment of high tensile strength resistance, the core material is the rigid high-density polyurethane thermal insulation layer with flame-retardant treatment, the bottom side is the foil protective layer with the function of insulation and moisture proof.