The wall and roof materials of the movable house are all colored steel plate cladding polystyrene foam sandwich composite panels. The color steel sandwich panel has the characteristics of heat preservation and heat insulation, anti-corrosion and sound insulation, light weight and flame retardant, good seismic performance, sturdy and beautiful, convenient installation, effective increase of the use area of the house, and no need for secondary decoration. The structure of the colored steel movable house is stable and reliable, and the roof adopts a structural waterproof design, without any additional waterproofing treatment. The interior and exterior walls and roof are bright in color, soft in texture, and smooth in the board. They are in harmony with the steel frame of the house and have a good decorative effect. The interior of the house is also highly decorative.