The invention discloses a green and environmental-friendly heat insulation board which comprises an intermediate support material with a
honeycomb structure. Two sides of the intermediate support material are wrapped by high
gas barrier material
layers; low-
radiation-coefficient surfaces are arranged on the inner side surfaces of the high
gas barrier material
layers; air,
argon,
carbon dioxide ormixtures thereof are filled in
honeycomb holes of the intermediate support material, or the
honeycomb holes of the intermediate support material are vacuumized;
phonon eutectics are coated on the low-
radiation-coefficient surfaces and the surface of the intermediate support material or mixed with the intermediate support material; and the high
gas barrier material
layers and the intermediate support material are glued by adopting glues. According to the green and environmental-friendly heat insulation board provided by the invention, through adopting the reasonable structure for matching withthe
phonon eutectics, the transfer of a
heat flow can be reduced, and the green and environmental-friendly heat insulation board has a low heat
conductivity coefficient, light weight and a good
flame-retarding effect, can be
cut into any size so as to meet the installation requirement, can be folded into multiple layers for use so as to meet the requirements on the installation thickness and a
heat resistance value, uses recyclable materials, is simple in production process and use process and non-
pollution, and belongs to green and environment protection.