The invention discloses a suitcase, which comprises a case body. A first internal sidewall of the case body is successively hinged to multiple laminates from bottom to top. A second internal sidewall, opposite to the first internal sidewall, is fixed with multiple fixture blocks. Hooks are fixed at the lower surfaces of the laminates, and the fixture blocks are fixed with necks which match the hooks. The external lateral side of the case body is respectively hinged to a first support and a second support. The first support is provided with multiple first through holes in the length direction. The second support is equipped with multiple second through holes in the length direction. A common suitcase is not layered inside and the internal space of the case body is wasted; and as the angle of a pull bar cannot be adjusted, a general suitcase capable of being pulled slantly or horizontally is easy to collide the foot of a puller when pulled slantly or horizontally and is very inconvenient. According to the suitcase of the invention, the above problems can be solved.