High-efficiency inorganic thermal insulation composite board

The invention discloses an efficient inorganic heat preservation composite board, and relates to the field of composite boards, the efficient inorganic heat preservation composite board comprises an inorganic backing board I. One side edge of the inorganic backing board I is coated with an inorganic adhesive I. A rock wool belt is fixedly bonded to the side edge, away from the inorganic backing board I, of the inorganic adhesive I; the side edge, away from the first inorganic adhesive, of the rock wool belt is coated with a second inorganic adhesive, and the side edge, away from the rock wool belt, of the second inorganic adhesive is fixedly bonded with a second inorganic backing plate. The first inorganic backing plate and the second inorganic backing plate are subjected to one-time hot press molding with the rock wool belt through the first inorganic adhesive and the second inorganic adhesive at the proper temperature, and the plate-shaped heat preservation material is formed. Due to the fact that integrate