The functional exercises of the ankle joint mainly include the following categories: first, range of motion exercises of the ankle joint, through active flexion and extension of the ankle joint, the range of motion of the ankle joint can be restored, especially for patients with ankle fractures and after surgery are more effective to avoid clinical manifestations such as stiffness of the ankle joint. Secondly, the exercise of muscles around the ankle joint, such as the tibialis anterior muscle, can be done through resistance to ankle flexion activities, while the calf triceps can be done through heel lift training. The number of times and time of daily exercise is not less than 500 times and one hour, which can strengthen the stability around the ankle joint and promote the recovery of ankle function. Through the above exercises, the range of motion of the ankle joint can be ensured and the stability of the ankle joint can be ensured, which is extremely beneficial to the patient’s recovery.