It is different from the traditional "prefabricated building" that the beam, slab, column, wall and other building components will be built in advance, through the way of building blocks, the industrial mode of assembling in the construction site is different; Based on the technology of "3D printing house", the "3D assembly building" of Chinese land and sea mainly adopts the whole customized printing of "single building" in the factory, and finally solves the problems of traditional "assembly building" such as wall cracking, uneven plate joint gap, poor sound insulation effect, poor heat insulation effect, etc., and also provides one for residents High intelligent living space with "self reorganization".