Abstract: The present invention discloses a multi-power output device for vehicle driving systems, which propels a vehicle having at least one wheel and comprises a primary power output device, a primary speed-change device, at least one auxiliary power output device, at least one auxiliary stepless speed-change device and at least two transmission devices. The primary power output device and the at least one auxiliary power output device respectively output driving power. The primary speed-change device, auxiliary stepless speed-change device and the transmission devices are coupled to drive the wheels to rotate and propel the vehicle to move. The present invention uses the primary power output device and the auxiliary power output devices to output driving power and uses the auxiliary stepless speed-change devices and the primary speed-change device to change the rotation speed of the driving power to output severalfold horse power to upgrade the acceleration capability of the vehicle.