Assembled building

The invention relates to an assembled building, and belongs to the technical field of civil engineering. The house comprises a plurality of house units, every two adjacent house units are spliced and fixed, each house unit comprises a base, a supporting column, a top seat, a wall plate, an opening and closing door assembly and a roof, each base comprises four bottom columns fixed end to end, the four bottom columns are arranged on the four sides respectively, the bottom columns comprise fixed bottom columns and sliding bottom columns, and the fixed bottom columns and the sliding bottom columns are arranged alternately. A sliding protrusion and an embedded protrusion are arranged at the end of the fixed bottom column in an overhanging mode, a sliding groove for containing the sliding protrusion is formed in the bottom wall of the sliding bottom column, the width of the sliding groove is larger than that of the sliding protrusion, and an embedding groove for the embedded protrusion to be embedded is formed in t