The invention discloses a heat insulation board with an improved structure and belongs to the field of board heat insulation. The heat insulation board comprises a base layer, a first adhesion agent, an
interface layer, a heat
insulation layer, a protective layer, a reinforcing layer, flexible
putty, a facing layer and a second adhesion agent. The base layer is arranged on one side of the heat insulation board, and the facing layer is arranged on the other side of the heat insulation board. The heat
insulation layer is arranged on one side of the base layer, and the
interface layer is arranged between the heat
insulation layer and the base layer. The side, away from the base layer, of the heat insulation layer is provided with the reinforcing layer, and a
glass fiber gridding cloth is arranged in the reinforcing layer. The protective layer is arranged between the heat insulation layer and the reinforcing layer, and the flexible
putty is arranged between the reinforcing layer and the facing layer. The heat insulation layer is fixed to the base layer through
cement-based plastering waterproof
mortar in the
interface layer and the
cement-based adhesion agents, and the
adhesion strength is high. The
glass fiber gridding cloth is arranged in the reinforcing layer and forms an organic whole with the heat insulation layer, accordingly, a certain extent of
impact damage can be prevented, the anti-impacting performance of the heat insulation board is reinforced, the higher heat degree can be borne, and cracks are reduced.