Cased assembled house

A box-type composite house comprises a base (10), columns (20), wall panels (30), a top frame member (40) and ceiling boards (50). Wherein the columns (20) are connected with the base (10) and the top beam (40) by fasteners (60) in a movable way, and a bottom panel of the base(10), side panels of the column (20), and the top boards of the top beams and the side panels are all provided with fixed holes. Wall panels (30) are connected with the base (10), the columns (20) and the top beam through wall panel fasteners (80). Wherein, the columns (20), the top beam (40) and the wall panel fasteners (80) are all box-type-structured by bending thin plates, which can not only improve the physical and mechanical properties of the components but also can function as slots of the water and electric lines and can be rapidly assembled and disassembled and used repeatedly.