Building energy-saving wall

The utility model relates to the technical field of building energy conservation, and discloses a building energy-saving wall which comprises an interface layer with one side fixedly provided with a wall body, a heat insulation layer used for heat preservation is fixedly installed on one side of the interface layer, a leveling plate used for supporting is fixedly installed on one side of the heat insulation layer, and an anti-cracking layer used for protection is fixedly installed on one side of the leveling plate. A waterproof layer used for protection is fixedly installed on one side of the anti-crack layer, and a facing layer used for decoration is fixedly installed on one side of the waterproof layer. According to the building energy-saving wall, through cooperative arrangement of the wall body, the interface layer, the heat insulation layer and the leveling plate, the device can be more stable and practical during use, the interface layer is fixedly installed through the wall body, normal use of the devi