VEHICLE POWER TRANSMISSION DEVICE

There is a vehicle power transmission device in which a continuously variable transmission and a gear train are provided between an input shaft and an output shaft so as to be able to transmit torque between the input shaft and the output shaft, torque output from a driving force source is input to the input shaft, the output shaft outputs torque, the continuously variable transmission continuously changes a speed ratio, the gear train has at least one speed ratio that cannot be set by the continuously variable transmission. In the vehicle power transmission device, a forward-reverse switching mechanism is arranged along the same axis as an axis of the input shaft, the forward-reverse switching mechanism carries out differential action by using three rotating elements including an input element, an output element and a reaction element of which rotation is stopped to rotate the input element and the output element in mutually opposite directions, a first clutch mechanism and a brake mechanism are provided, the first clutch mechanism couples at least two rotating elements among these three rotating elements, the brake mechanism stops rotation of the reaction element, the input element and the output shaft are coupled to each other via the continuously variable transmission, a second clutch mechanism is provided in a first torque transmission path that is routed from the input shaft to the output shaft via the continuously variable transmission, the second clutch mechanism transmits or interrupts torque, the output element and the output shaft are coupled to each other via the gear train, a third clutch mechanism is provided in a second torque transmission path that is routed from the output element to the output shaft via the gear train, and the third clutch mechanism transmits or interrupts torque.