A belt-type stepless transmission is provided with: an input shaft (10); an input pulley (20) having a stationary sheave (21) and a movable sheave (22); a transmission shaft (40) disposed parallel to the input shaft (10); an output pulley (50) having a stationary sheave (51) and a movable sheave (52); a belt (90) wound around the input pulley (20) and the pulley (50); an output shaft (60) disposed coaxially with the transmission shaft (40); and a cam mechanism (80) having a sheave-side cam (81) which is provided and affixed to the movable sheave (52) and a shaft-side cam (82) which is provided and affixed to the output shaft (60) and causing the sheave-side cam (81) and the shaft-side cam (82) to make contact with each other to thereby enable the transmission of torque between the movable sheave (52) and the output shaft and apply an axial pressing force corresponding to the torque to the movable sheave (52).
