Heat insulation bridge structure of building outer wall

The utility model relates to the technical field of building heat preservation, in particular to a heat insulation bridge structure of a building outer wall. The building outer wall thermal bridge breaking structure comprises a concrete outer wall, a thermal insulation layer structure is arranged on the outer wall face of the concrete outer wall, the thermal insulation layer structure comprises two AAC wallboards, the two AAC wallboards are in a sawtooth shape, and the middles of the two AAC wallboards are filled with B1-level thermal insulation materials; heat insulation cushion blocks are fixedly embedded in the opposite plate faces of the two AAC wall plates, and a heat insulation bridge anchor bolt is arranged between the concrete outer wall and the heat preservation layer structure. According to the AAC wallboard of the building outer wall heat insulation bridge structure, the AAC wallboard is arranged to be in the sawtooth shape, the coating area of the AAC wallboard and adhesive glue is larger, the adh