The treatment of cruciate ligament injury includes general treatment, drug treatment, surgical treatment and so on. 1. General treatment: When cruciate ligament injury occurs, braking of the knee joint area should be carried out immediately, and plaster or brace should be used for immobilization to avoid secondary injury. Cold compresses and compression bandages should be applied within 72 hours of the injury, and the affected limb should be elevated to avoid aggravation of swelling. 2. Medication: When the pain is severe and intolerable, non-steroidal anti-inflammatory drugs can be taken orally to reduce the pain, such as celecoxib and etoricoxib. 3. Surgery: If the cruciate ligament is completely ruptured and the knee joint is obviously unstable or if there is a need for sports, surgery is needed to reconstruct the ligament in order to restore the integrity of the ligament. In case of cruciate ligament injury, relevant examination is needed to clarify the degree of injury and standardize the treatment under the guidance of the doctor. In addition, the above drugs should also be used under the guidance of a doctor.