Mobile modularized dwelling house

A transportable modular comprises a roof structure, an exterior wall structure and a floor structure which are mutually connected into a box shape. The exterior wall structure comprises a metal plate (2), an interior wall panel (14) and an exterior wall heat insulation layer (29) provided therebetween, studs (20) and light steel keels (13) are disposed in the exterior wall heat insulation layer (29). The roof structure comprises a roof (6), a top beam (7) which supports the roof (6), a ceiling and a roof heat insulation layer (9) provided between the roof (6) and the ceiling, a space between the roof (6) and the roof heat insulation layer (9) forms an air thermal barrier. The floor structure comprises a bottom frame composed of bottom crossbeams (24) and bottom longitudinal beams (25), autoclaved lightweight aerated concrete slabs (23) or fiber reinforced cement boards (30), with floor slabs (21) being mounted thereon, are provided on the bottom frame. An assembled modular accommodation unit comprising at lea