It is possible to provide a continuously variable transmission device which can realize both the miniaturization of the apparatus and the improvement of the fuel efficiency and the speed of the transmission. Which has a planetary gear mechanism, a continuously variable transmission mechanism, a mode A drive shaft, a mode B drive shaft, an intermediate shaft and an output shaft, a mode 1 driven gear meshing with a mode 1 drive gear and a mode of engagement with the mode 3 drive gear 3 The driven gear is provided on the intermediate shaft and the mode 2 drive gear meshing with the mode 2 drive gear and the output drive gear are provided on the intermediate shaft and rotate integrally with the intermediate shaft, the output driven gear meshing with the output drive gear is provided on the output shaft and The first switching mechanism of the switching mode 1 and the mode 3 is provided in either one of the intermediate shaft and the mode A drive shaft, and the second switching mechanism of the switching mode 2 and the mode 4 is provided on the mode B drive shaft.