Vacuum insulation board (VIP) is a kind of near-vacuum energy-saving thermal insulation material. It is composed of a composite core material, a getter and a vacuum-protected surface layer. It effectively avoids the heat transfer caused by air convection, resulting in a greatly reduced coefficient, which can be less than 0.0015W/㎡.K, and does not contain any 0DS materials, has the characteristics of environmental protection and high efficiency and energy saving, and is currently the most advanced high-efficiency heat preservation and energy-saving material in the world.