Cranial repair is a surgical procedure for patients with cranial defects caused by cranial trauma and diseases, which mainly repairs the defective part of the skull and rebuilds the protective shell of the soft tissues of the brain. At present, with the rapid development of the economy, more and more people suffer from cranial defects due to traffic accidents, falling objects, various intracranial diseases, etc., which makes cranial bone repair a common surgery for us. Currently, most hospitals use titanium mesh material for skull repair. Titanium mesh for skull repair has certain disadvantages, such as: poor compatibility, high infection and other disadvantages, and can be thermally conductive, relatively impervious to X-rays and foreign body reactions. At present, our team has adopted the new PEEK material to do cranial bone repair, PEEK material cranial bone repair surgery after surgery, light weight, no foreign body sensation, no force collapse concerns modulus of elasticity close to the autologous bone, reduce the “stress shielding”. Moreover, CT/MRI tracking is convenient, no artifacts interfere with the brain pacemaker, magnetic stimulation, electrical stimulation has no effect. Cranial repair has now become a relatively routine surgery in the medical community, the risk of surgery is relatively small, but there are a few patients who are concerned or have questions about the life expectancy after cranial repair? Cranial bone repair surgery is not very difficult, will not move the soft tissues in the skull, no postoperative infection and other complications, after cranial bone repair, it is possible to return to normal life, does not affect the life expectancy.