Cranial defects are common and can be caused by a variety of reasons, from small fights to traffic accidents and craniotomies. Patients with cranial defects need to have them repaired as soon as possible because the skull provides strong protection for the brain and other head organs, and also contributes significantly to the overall aesthetics of the skull and nerve recovery. Cranial repair surgery has been developed through the ages and perfected by medical experts. After skull repair surgery, it can make the patient’s intracranial pressure return to normal and stable state as soon as possible, and reduce the daily drastic changes of brain pressure caused by skull defect, which has a continuous and serious damage and functional impact on the brain; in addition, it can restore the skull integrity and enhance the patient’s external image. In fact, the cost of skull repair surgery is influenced by many factors, such as the area of defect, surgical method, hospitalization fee, post-operative care fee, etc. Among them, the surgical method occupies a greater weight on the overall post-operative repair effect, and the superior surgical method, which only requires a one-time repair, can allow the patient to recover. Like the titanium mesh cranial repair used in some hospitals, there are many disadvantages, such as possible post-operative rejection infection, material exposure, and the need for the patient to undergo another repair, which is a major nuisance to the patient. We carry out the peek cranial repair plastic surgery to achieve the ideal repair effect. This surgical repair + plastic composite procedure accomplishes both needs of the patient on one surgery, and the overall image of the patient after the surgery is quite good and natural and beautiful. In addition, this procedure uses peek as the implant material and has good results.