▎ 摘　　要

NOVELTY - The utility model relates to the technical field of sound insulation and heat insulation new material, especially relates to a heat insulation sound insulation glass fibre cotton felt; comprising a glass fibre cotton felt main body, the glass fibre cotton felt main body is composed of a first glass fibre cotton felt, a first graphene layer, a sound insulation cotton layer, a second graphene layer and a second glass fibre cotton felt from up to down; the first glass fibre cotton felt, a first graphene layer, a sound insulation cotton layer, the second graphene layer and the second glass fibre cotton felt are connected by hot melt adhesive. The utility model is provided with a first graphene layer and a second graphene layer, which improves the heat preservation performance of the glass fibre cotton felt main body; in addition, the first graphene layer and the second graphene layer also can improve the mechanical strength of the whole glass fibre cotton felt main body; By setting the sound insulation cotton layer, it can effectively obstruct the sound propagation, and it has practicability.