Avehicle driving apparatus comprising: a rotating electrical machine that acts as a source of driving force for a first wheel and a second wheel ; a speed reduction device that reduces a speed of rotation of the rotating electrical machine ; a differential gear device that distributes, to the first wheel and the second wheel , the driving force transmitted from the rotating electrical machine via the speed reduction device ; a case that houses the rotating electrical machine , the speed reduction device , and the differential gear device ; and an oil circulation mechanism , wherein the rotating electrical machine has a cylinder-shaped stator and a rotor that is located on a radially inner side (R2) relative to the stator , the speed reduction device and the differential gear device are located coaxial with the rotating electrical machine , oil is stored in the case , and the oil circulation mechanism circulates the oil within the case , characterized in that in a steady circulation state where circulation of the oil is in a steady state, an oil surface that is a top surface of the oil is positioned on a lower side (V2) relative to a lower end of an inner circumferential surface of the stator and is positioned on an upper side (V1) relative to a lower end of an outer circumferential surface of the stator , the speed reduction device includes a planetary gear mechanism having a sun gear (S31, S32), a pinion gear (P31, P32) that revolves around the sun gear (S32, S32), and a ring gear (R31, R32) fixed with respect to the case , and in the steady circulation state, the oil surface is positioned on the lower side (V2) relative to a lower end of a path of revolution of the pinion gear (P31, P32). a rotating electrical machine that acts as a source of driving force for a first wheel and a second wheel ; a speed reduction device that reduces a speed of rotation of the rotating electrical machine ; a differential gear device that distributes, to the first wheel and the second wheel , the driving force transmitted from the rotating electrical machine via the speed reduction device ; a case that houses the rotating electrical machine , the speed reduction device , and the differential gear device ; and an oil circulation mechanism , wherein the rotating electrical machine has a cylinder-shaped stator and a rotor that is located on a radially inner side (R2) relative to the stator , the speed reduction device and the differential gear device are located coaxial with the rotating electrical machine , oil is stored in the case , and the oil circulation mechanism circulates the oil within the case , characterized in that in a steady circulation state where circulation of the oil is in a steady state, an oil surface that is a top surface of the oil is positioned on a lower side (V2) relative to a lower end of an inner circumferential surface of the stator and is positioned on an upper side (V1) relative to a lower end of an outer circumferential surface of the stator , the speed reduction device includes a planetary gear mechanism having a sun gear (S31, S32), a pinion gear (P31, P32) that revolves around the sun gear (S32, S32), and a ring gear (R31, R32) fixed with respect to the case , and in the steady circulation state, the oil surface is positioned on the lower side (V2) relative to a lower end of a path of revolution of the pinion gear (P31, P32). <EOS>