Fabricated building assembly and fabricated building

The utility model relates to an assembly type building, in particular to an assembly type building assembly and an assembly type building, the assembly type building assembly comprises clamping plates, a plurality of connecting pieces and a plurality of connecting pieces, the clamping plates are arranged in pairs, and square holes are formed in one sides of the clamping plates; the functional interlayer is clamped between the two clamping plates to form a wall body unit; the end of the square tube is matched with the square hole; a clamping cavity is formed between every two adjacent square pipes, and the clamping cavities are in interference fit with the wall units. According to the assembly type building assembly, the clamping plates, the square pipes and the functional interlayer are arranged, the wall body units formed after the functional interlayer is clamped by the clamping plates are clamped through the square pipes, and compared with an existing traditional bonding mode or an interlayer and plate bod