Heat insulation bridge structure for fabricated near-zero-energy-consumption building outer wall system

The utility model relates to the field of constructional engineering, in particular to a heat insulation bridge structure for a fabricated near-zero-energy-consumption building outer wall system, which is built on a horizontally-arranged main body structural beam and comprises a plurality of inner wall plates, an outer wall plate and a heat insulation layer, the plurality of inner wall plates are assembled on the top surface of the main body structural beam, and the outer wall plate is assembled on the top surface of the main body structural beam. At least one inner wall plate is assembled with the main body structural beam, channel steel is arranged on the side, away from the interior of a room, of the main body structural beam, a connecting steel plate is fixedly arranged between the channel steel and the main body structural beam, the multiple outer wall plates are assembled on the channel steel, at least one outer wall plate is assembled with the channel steel, and one heat preservation layer is arranged