It is well known that cranial defects not only damage the patient’s image, but also pose a serious threat to the patient’s health and safety. Individual patients clinically experience memory loss after debridement. This condition is mainly a manifestation of retrograde amnesia due to damage to the functional brain areas associated with memory after the patient’s injury. So, is cranial repair useful for memory? With cranial repair, some neurological functions can be promoted to recover. When the neurological functions are well recovered, it helps patients to recover their memory as early as possible. Besides, skull repair can also restore the normal shape of the patient’s head and increase the safety of the patient. With the protection of the skull, the re-injury of the brain tissue can be effectively avoided and various adverse reactions can be avoided. The choice of repair material when doing skull repair is also an important factor to determine the postoperative effect of patients. Good material can not only achieve good repair effect, but also effectively avoid some postoperative complications. For example, many patients choose to use titanium mesh as the repair material, postoperative problems such as rejection and infection Currently, we use polyetheretherketone peek material as the skull repair implant material to carry out polyetheretherketone PEEK skull repair plastic surgery, and hundreds of cases have been completed to further summarize the research and improve and upgrade the technology. For example, the unique peek material thickness and mesh aperture design pioneered and the unique intraoperative tissue separation and repositioning technique can increase blood flow, effectively avoid temporal muscle atrophy, and ensure the activity of each tissue. The aesthetic factors are also handled appropriately, such as subcutaneous freeing, flap transfer, myofascial flap with tip transfer, and brow arch shaping, etc. The post-operative cosmetic results are widely popular among the public.