Light steelvilas are prefabricated low-rise residences with cold formed thin-walled steel keels as the main load -bearing frame. Components are prefabri-cated in factories and assembled on site.Walls are flled with thermal and sound insulation materials suchas rock wool and glass wool, and matched withinterior and exterior decorative panel. They enjoy advantages including light dead weight, excellent seismic and wind resistance, short constructionperiod, good heat and sound insulation, flexible modeling, environmental protection and recyclability, as wellas high usable area. They are ideal for rural self-built houses, homestays and low-rise villas.