The heel-fibular ligament is a ligament between the heel bone and the fibula, which mainly plays the role of stabilizing the ankle joint. In case of injury to the heel-fibular ligament, the first clinical treatment is to instruct the patient to rest in bed, elevate the affected limb, and apply a blood-stasis-activating ointment to the affected area or cooperate with local physiotherapy such as acupuncture, moxibustion, and acupuncture point herbal iontophoresis to improve local blood circulation and promote the recovery of the injured ligament. In addition, drugs for bruises can be taken orally, for example, bruises pills and bone injury spirit can be taken orally. If ankle instability and complete rupture of the heel-fibular ligament are found during clinical examination, the next step of treatment is mainly to consider surgical treatment, which can be done by incision and exploration and heel-fibular ligament repair. All in all, after this condition occurs, the patient must go to the hospital in time and take symptomatic treatment after the orthopedic surgeon gives a clear diagnosis to avoid delaying the condition.