Oil pump device and vehicle

The embodiment of the invention provides an oil pump device and a vehicle, and the oil pump device comprises a motor structure which comprises a driving shaft, and the driving shaft rotates around an axis extending in the axial direction; the pump structure comprises a pump shell and a pump rotor arranged on the pump shell; the pump shell comprises a pump body and a pump cover arranged at one axial end of the pump body, a containing part is arranged between the pump body and the pump cover, and the pump rotor is located in the containing part; the pump rotor specifically comprises a first rotor part and a second rotor structure which are meshed with each other; the driving shaft and the first rotor part are integrally formed. According to the technical scheme, the first rotor part is of an integrated structure, the driving shaft rotating along with the motor rotor and the first rotor part matched with the second rotor structure are integrally formed and manufactured, the first rotor part is supported through