The common causes of cranial brain injury are traffic accidents, falls, violent injuries and sudden natural disasters. The skull is an important protective barrier for the brain and has an important protective mission. However, many people suffer from skull defects due to accidents or cranio-cerebral surgeries, etc., which is a great threat to health. The skull is the umbrella for the human brain, and once the skull is damaged, the brain, sensory organs, digestive and respiratory organs will be significantly affected. Therefore, it is important to repair the skull in a timely manner. Under normal circumstances, the skull can be repaired within 3 months of recovery from trauma or surgery. However, nowadays, many patients do not know much about cranial repair surgery, such as the materials used, how much does cranial repair surgery cost, etc. The following is a brief introduction to the specifics. In order to ensure the success of the surgery, it is important to choose safe materials, regular hospitals and experienced specialists. Early cranial bone repair surgery used artificial bone, plexiglass and titanium mesh and other materials, these materials are not high in price, but the key is that each of these materials have certain defects, so that the postoperative effect is not so perfect, so it is also necessary to use safer and more advanced materials. Currently do skull repair surgery, that is (polyether ether ketone) peek material is the ideal choice, it is a real polymer material, its various properties and the autologous skull are very similar, high degree of anastomosis, the effect is good, the use of peek material to do skull repair surgery is a major breakthrough in medical success. Cranial repair surgery generally includes hospitalization costs, drug costs and surgical costs, and the severity of each patient’s condition is not the same, the size of the cranial defect is also different, which can affect the cost of surgery. In other words, there is no fixed answer to the cost of cranial repair surgery, and patients need to go to the hospital for a comprehensive assessment to determine the surgical plan and medication to know the exact cost.