Everyone wants to live a peaceful, disease-free life, but some sudden accidents come to us without any preparation and pose a great threat to our health and normal life. Cranial defect is one of the most common accidents, where a part of the skull is missing and becomes collapsed and incomplete. In this case, skull repair undoubtedly opens a new door for patients. According to the survey, many patients with cranial defects experience various discomforts after surgery, such as dizziness and tightness of the scalp. Scalp tightness after skull repair may be caused by soft tissue swelling or increased scalp tension, which is generally not a big problem and patients need not worry too much. In addition, there are some patients who choose to perform titanium mesh cranial repair surgery, because of the poor insulation performance of the material, there will be headache and dizziness in the hot and cold environment after surgery; there is also the histocompatibility of titanium mesh is not very good, may occur rejection reaction or postoperative infection, or even scalp tissue destruction, resulting in titanium mesh exposed. In recent years, the emergence and application of a new material, peek, has contributed to the ideal repair effect in skull repair, which is undoubtedly a great progress in medicine. peek material has many advantages, it has good histocompatibility, and basically no discomfort will occur after surgery. It has high hardness and high impact resistance, so it is not easily deformed after surgery even if it is bumped. It is also more ideal for shaping than the materials previously used in clinical applications, and has a high degree of symmetry on both sides after surgery. Our team then introduces peek as the skull repair implant material and carries out peek skull repair plastic surgery, which not only restores the skull as before, but also plays a certain aesthetic role in the appearance. At the same time, we join the concept of cosmetic plastic surgery, develop personalized repair plastic plan, and pay attention to the improvement of details, such as the design of material aperture thickness, design of material edge, separation and reset protection of each layer of tissues during surgery, prevention of temporal muscle atrophy, prevention of scalp abrasion, and cosmetic plastic surgery, etc. We have made a lot of improvements, which can greatly improve the overall aesthetic effect.