Veneer external corner mounting node and construction method

The invention relates to a veneer external corner mounting joint and a construction method, and relates to the field of indoor decoration. The device comprises two wall surface veneers mounted on a wall surface through a hanging assembly, and an arc-shaped external corner veneer located at an indoor external corner is arranged between the two wall surface veneers. The two L-shaped connecting bases can be fixedly mounted at the two ends of the arc-shaped external corner veneer correspondingly, the wall veneer is mounted on the wall in a hanging mode through the hanging assemblies, the arc-shaped external corner veneer is pulled inwards, so that the arc-shaped external corner veneer deforms, and the arc-shaped external corner veneer is mounted on the wall in a hanging mode. The L-shaped connecting base and the wall veneer are installed in a clamped butt-joint mode through the butt-joint assembly, the elastic supporting assembly is installed at the external corner to elastically support the inner side of the arc