Life is always full of accidents, and one accident can lead to damage to our skull, and in order to reduce the occurrence of more dangerous situations, skull repair is necessary once the skull is extensively damaged. Cranial repair, to the layman’s eye, sounds like a big project and a seemingly risky procedure, so care must be taken in choosing materials. In the beginning, experts were blind in their search for cranial bone materials. With the continuous development of science and technology, titanium mesh is widely used as a repair material in more hospitals, but there are still many defects and shortcomings, causing patients to have different degrees of rejection after surgery. In this dilemma, more and more medical experts realize that for cranioplasty, it is not enough to fill the cranial defect, but it must achieve the reconstruction of the local anatomy of the skull surface. Therefore, they have been exploring for a more perfect material for repair. Cranioplasty has undergone millennia of development and has now come to a very mature stage. Cranioplasty materials are made of a new polyether ether ketone material, commonly known as PEEK, which has a very high surgical success rate, its various properties are comparable to human cranial bone, it can be complexly shaped, has excellent mechanical properties, has a smooth appearance, does not cause cutting injuries, and does not interfere with various postoperative medical examinations, and is carried out It has been used for cranial bone repair for countless patients since its development. At present, the application of this new material has been unanimously recognized and highly evaluated by patients and medical experts.