Mobile buildings, constructed with lightweight steel frames and sandwich panels as protective materials, are assembled using modular designs and bolted connections. They represent a new concept in environmentally friendly and cost-effective temporary housing. These buildings can be easily assembled and disassembled, achieving universal standardization in temporary structures. They embody the principles of environmental protection and energy conservation, quick construction, and have entered the field of standardized products with series development, integrated production, and配套 supply, as well as being storable and reusable multiple times.