The skull is very hard and is one of the important bones of the human body. With the strong protection of the skull, the brain tissue can function normally. However, things happen, and the skull is severely damaged by the impact of an external force when we cannot expect it. After the skull defect, the tissues inside the skull lack the protective coat and may be in danger at any time, so it is necessary to have skull repair surgery before it is too late. Is skull repair surgery safe? This is a question in patients’ mind, and some patients may even be afraid of surgery because they are worried about safety, which is wrong. Cranial repair surgery is a common surgical procedure that has been developed for a long time and has become very mature, but it is necessary to go to a regular hospital and choose an experienced specialist to perform the surgery. However, in the process of skull repair surgery, the choice of material is a key point that directly affects the outcome of the surgery. At present, many hospitals use titanium mesh material for skull repair surgery, which is cheaper and much more advanced than the traditional material earlier, but there are also many problems that cannot be avoided, such as high rate of post-operative infection, large rejection reaction and high failure rate. The use of peek material breaks the various disadvantages of traditional materials, and the infection will not occur after surgery, which is a blessing for patients. It is a blessing for patients. Our team is currently using peek materials extensively to perform PEEK cranioplasty, and our team is constantly researching, upgrading and improving our techniques, as well as incorporating the concept of cosmetic surgery to perform PEEK cranioplasty in a comprehensive manner, achieving ideal recovery results.