It is not uncommon for cranial defects to occur, and many are caused by a heavy blow from an external force, or by having craniotomy surgery for a certain cranial condition, etc. But regardless of the cause, cranial defects are a problem that should not be ignored because they are a barrier that protects the brain and can cause greater problems if not addressed in a timely manner. From the appearance point of view, the skull is an important guarantee to maintain the beauty of the head and face, while from the health and safety point of view, it maintains the stability of intracranial pressure and intracranial environment. Once a skull defect occurs, abnormal changes will occur in the skull, and the neurological function of the brain may be damaged, which will bring a lot of discomfort to the patient’s body, and affect his or her life and work. It is imperative to go to the hospital for cranial defects to have cranial repair surgery, which is a relatively classic procedure in neurosurgery with a long history of development and relatively mature technology. Can the cost of skull repair surgery be reimbursed? This is a lot of patients are concerned about, but in fact this specific to combine the operation and the local health insurance policy, it is recommended to choose to go to the regular hospital treatment, so that the charges in all aspects do not have to worry about. And do skull repair surgery should also focus on the choice of materials, really good materials can improve the success rate of the operation, but also can reduce the probability of postoperative complications. From ancient times to the present day, there has been a constant iteration of cranial bone repair materials, early bone cement, plexiglass, etc., while many hospitals are now widely used in the titanium mesh material, which is an improvement over the previous materials, but there may still be some problems. Subsequently, there is a new type of polyetheretherketone titanium mesh material, which is a very safe polymer biomaterial, it is particularly close to the autologous skull in terms of hardness, insulation, elasticity and stability, which makes it an ideal material for cranial bone repair.