Composite adiabatic insulation board

The invention discloses a composite adiabatic insulation board, belongs to the technical field of building materials, and relates to the energy-saving technology and application of exterior wall external insulation. The composite adiabatic insulation board is formed by combining an existing insulation material (note: the insulation material of which the heat conductivity coefficient is low and the fireproof performance grade is level A is selected) and an adiabatic component (the adiabatic component is high in bearing strength and good in adiabaticity, and the fireproof performance grade is level A1) in the invention. When the composite adiabatic insulation board is applied to an external thermal insulation system, the insulation material in the composite adiabatic insulation board I can only play a role in insulating, and the adiabatic component plays a role in building-in the insulation material, supporting the load of an exterior wall facing, and anchoring and connecting a building external wall structure. According to the composite adiabatic insulation board provided by the invention, the technical problems of the exterior wall external insulation of realizing insulating, energy-saving and fireproof requirements by using the existing insulation material can be solved; furthermore, the problems of diversity of selecting architectural coating materials, the whole covering of the external thermal insulation system, and the same life of the external thermal insulation system and a building structure can be solved.