In the present invention, the motion state of the wearable motion-assist device 10-1 of the doctor 1 is sent to the wearable motion-assist device 10-2 of the patient 2 via a network. Then, this motion state is applied to the wearable motion-assist device 10-2 of the patient 2, so that rehabilitation is conducted for the patient 2. Furthermore, the motion state of the wearable motion-assist device 10-2 of the patient 2 is sent from the wearable motion-assist device 10-2 to the wearable motion-assist device 10-1. Then, the motion state of the wearable motion-assist device 10-2 is applied to the wearable motion-assist device 10-1. Accordingly, the doctor 1 can objectively sense the state of the patient 2.