A power transmission apparatus comprising: an internal combustion engine revolution number sensor which measures a revolution number of an output shaft of an internal combustion engine; a transmission which includes an input shaft to which power is transmitted from the output shaft of the internal combustion engine, and an output shaft which transmits the power to driving wheels of a vehicle, and which adjust a speed reduction ratio that is a ratio of a revolution number of the input shaft to the revolution number of the output shaft; an input shaft revolution number acquisition means which acquires the revolution number of the input shaft of the transmission; a clutch which is interposed between the output shaft of the internal combustion engine and the input shaft of the transmission, and which is adjusted between an engaged state where at least a portion of power is transmitted between the output shaft of the internal combustion engine and the input shaft of the transmission and a disengaged state where the power is not transmitted; an actuator which varies a clutch torque in the engaged state; a vehicle speed acquisition means which acquires a speed of the vehicle; and characterised by a control device for controlling the actuator to gradually increase the clutch torque until the difference between the revolution number of the input shaft which is input from the input shaft revolution number acquisition means and the revolution number of the output shaft which is input from the internal combustion engine revolution number sensor becomes less than the predetermined value, and controlling the internal combustion engine to gradually increase an output torque from the output shaft after increasing the clutch torque, when the clutch is in the engaged state and if a creep state, in which a difference between the revolution number of the input shaft which is input from the input shaft revolution number acquisition means and the revolution number of the output shaft which is input from the internal combustion engine revolution number sensor is not less than a predetermined value, continues for predetermined time or more, at a vehicle speed of not more than a predetermined speed which is input from the vehicle speed acquisition means after the vehicle starts moving by an operation of a brake pedal which instructs a braking force applied to the vehicle based on a magnitude of a driver's operation. an internal combustion engine revolution number sensor which measures a revolution number of an output shaft of an internal combustion engine; a transmission which includes an input shaft to which power is transmitted from the output shaft of the internal combustion engine, and an output shaft which transmits the power to driving wheels of a vehicle, and which adjust a speed reduction ratio that is a ratio of a revolution number of the input shaft to the revolution number of the output shaft; an input shaft revolution number acquisition means which acquires the revolution number of the input shaft of the transmission; a clutch which is interposed between the output shaft of the internal combustion engine and the input shaft of the transmission, and which is adjusted between an engaged state where at least a portion of power is transmitted between the output shaft of the internal combustion engine and the input shaft of the transmission and a disengaged state where the power is not transmitted; an actuator which varies a clutch torque in the engaged state; a vehicle speed acquisition means which acquires a speed of the vehicle; and characterised by a control device for controlling the actuator to gradually increase the clutch torque until the difference between the revolution number of the input shaft which is input from the input shaft revolution number acquisition means and the revolution number of the output shaft which is input from the internal combustion engine revolution number sensor becomes less than the predetermined value, and controlling the internal combustion engine to gradually increase an output torque from the output shaft after increasing the clutch torque, when the clutch is in the engaged state and if a creep state, in which a difference between the revolution number of the input shaft which is input from the input shaft revolution number acquisition means and the revolution number of the output shaft which is input from the internal combustion engine revolution number sensor is not less than a predetermined value, continues for predetermined time or more, at a vehicle speed of not more than a predetermined speed which is input from the vehicle speed acquisition means after the vehicle starts moving by an operation of a brake pedal which instructs a braking force applied to the vehicle based on a magnitude of a driver's operation.