Insulation board assembly made of building insulation material

The utility model discloses a heat insulation board assembly made of building heat insulation materials, which comprises a first metal plate, a heat insulation layer used for heat insulation is arranged on the inner surface of the first metal plate, and a second metal plate used for protecting the heat insulation layer is arranged on the back surface of the heat insulation layer. A supporting assembly used for enhancing the strength of the second metal plate is arranged on the front face of the second metal plate. The supporting assembly comprises a supporting column. By means of the design of the first metal plate, the second metal plate, the edge covering plate, the heat preservation layer and the supporting assemblies, the supporting assemblies are arranged between the first metal plate and the second metal plate, supporting between the first metal plate and the second metal plate is achieved, and therefore when the second metal plate is subjected to external impact, the second metal plate can be prevented