In a driving device of a vehicle provided with driving sources, an input shaft rotatable due to driving force of the driving sources, a continuously variable transmission mechanism that shifts the rotation of the input shaft to be transmitted to an output shaft, and a start clutch for switching presence/absence of driving force transmission from the output shaft to a downstream side; when a ratio of the continuously variable transmission is on a lower ratio side than a predetermined threshold value, the output torque control means for controlling the output torque of the driving sources perform control to restrict the upper limit of output torque of the driving sources to a value smaller than the upper limit when a ratio is on the higher ratio side than the threshold value.