Color-steel houses are a new concept of environmentally friendly and economic housing, constructed with light steel H-beams and channel steel as the frame, sandwich panels as the wall materials, and assembled using standard modular series. The components are connected with bolts or welded joints. They can be easily assembled and disassembled, achieving universal standardization of temporary structures. This sets a new building philosophy of environmental protection, energy conservation, and efficiency, bringing temporary housing into a field of serialized development, integrated production, matched supply, and reusable products that can be stored and circulated multiple times.