If ptosis is caused by peripheral nerve injury, such as peroneal nerve injury or lumbar nerve root injury, the training method is to give low frequency electrical stimulation to the tibialis anterior muscle. When the muscle has ankle dorsiflexion, electronic biofeedback therapy can be done, together with ankle dorsiflexion muscle training to exercise. The patient can tie an elastic band on the top of the instep, fixed on the ground, and forcefully hook the instep, the elastic band will give a certain resistance against it, and this kind of plyometric training method is more effective. You can also do acupuncture treatment, massage the tibialis anterior muscle after training, passive activities of the ankle joint, to avoid contracture of the Achilles tendon. If the foot drop is caused by brain injury, it is necessary to strengthen the ankle joint stretching, especially the Achilles tendon as well as the hamstring muscle, to reduce the tension of the gastrocnemius muscle as much as possible, and then with acupuncture, low-frequency and other electrical stimulation to induce ankle dorsiflexion.