Outer wall heat preservation and insulation coating structure

The technical scheme of the utility model provides an external wall thermal insulation coating structure. The external wall thermal insulation coating structure comprises a waterproof bottom fixing layer, an aerogel thermal insulation layer, an anti-crack layer, a thermal insulation putty layer, a primer layer, an intermediate paint layer and a surface coating, the waterproof bottom fixing layer is used for being attached to an outer wall surface for waterproofing, the aerogel heat preservation layer, the anti-crack layer, the heat preservation putty layer, the primer layer, the intermediate paint layer and the surface coating are sequentially arranged on the side, away from the wall surface, of the waterproof bottom fixing layer in an overlapped mode, and the aerogel heat preservation layer is used for providing the heat preservation effect. Through the structural arrangement of the waterproof bottom fixing layer, the aerogel heat preservation layer, the anti-crack layer, the heat preservation putty layer, t