The invention belongs to the technical field of buildings, and discloses an integrated wall. The integrated wall comprises an outer wall body and an inner wall body, wherein the outer wall body and the inner wall body are fixedly connected and maintain a preset distance, a compressor, a four-way valve, a refrigerant pipeline, an electrical circuit and a controller are arranged in an interlayer between the outer wall body and the inner wall body, the outer wall body comprises an outer shell, an outdoor water tank, an outdoor coil and a heat preservation layer, the outer shell is arranged on theoutermost side of the whole integrated wall, the heat preservation layer is arranged between the outdoor water tank and the interlayer, the outdoor coil is arranged in the outdoor water tank, a cooling medium is stored in the outdoor water tank, a part of a household water hot water supply pipeline is arranged in the outdoor water tank, the inner wall body comprises an inner shell and an indoor coil, and the inner shell is arranged on the innermost side of the whole integrated wall. By adopting the technical scheme, installation of an air conditioning system is preset in advance, constructioncan be ensured to be carried out according to unified standard, safety requirements can be met, and the energy efficiency ratio of the air conditioning system is improved.