Valve device, cooling system comprising same and vehicle

The invention relates to the technical field of vehicles, in particular to a valve device, a cooling system comprising the valve device and a vehicle. The valve device comprises a shell and a valve element, a first cavity is formed in the shell, and a first through hole, a second through hole, a third through hole, a fourth through hole and a fifth through hole which communicate with the first cavity are formed in the inner side wall of the first cavity; the first through hole, the second through hole, the third through hole, the fourth through hole and the fifth through hole are sequentially distributed in the circumferential direction of the first cavity, the valve element is located in the first cavity, and the inner wall of the first cavity abuts against the first cavity in a sealed mode. The valve element is rotationally connected with the shell so that the valve element can be switched among different working positions so as to change the communication state among the first through hole, the second thro