It has the advantages of convenient disassembly and packing, lower transport cost, modularization installation and fast construction. When transported to the site, the house could be assembled, fixed, combined and stacked easily. As the steel frame is strong and reliable, those houses could be stacked vertically and connected parallelly to create more space. It is widely used as temporary office, dormitory, camp, meeting rooms, restaurant, reception building, temporary sales offices, permanent housing and so on.