To prevent the degradation of the durability of a driving system resulting from the temporary input of torque from an output member of a hybrid driving mechanism.

This control device for the hybrid driving mechanism having the output member to which torque is transmitted from a first power source and a second power source connected thereto via a transmission mechanism which can change a torque transmission capacity, comprises detecting means (steps S1-S4) for detecting the input of the torque from the output member and a transmitted torque control means (Step S5) for reducing the torque transmission capacity of the transmission mechanism in accordance with the detection result of the input of the torque by the detection means.