Cranial defects are a relatively common disorder in neurosurgery, and early cranial repair is usually recommended for larger cranial defects. Then what department to hang up cranial bone repair? Some patients may have this question. Cranial repair surgery is a routine surgery in neurosurgery, because most of the skull defects are caused by neurosurgery-related diseases or injuries, so the cranial repair generally have to hang the neurosurgery department for treatment. Cranial repair surgery is an ancient and classic procedure that was practiced by our ancestors thousands of years ago. There are archaeological findings of examples of covering a defective skull with pieces of fused cloth or metal as early as 7,000 or 8,000 years ago, which is probably the earliest prototype of cranial repair surgery. After thousands of years of development and evolution, in modern medical conditions, cranial repair surgery has been a mature and perfect surgical procedures, cranial repair materials with the evolution of history has occurred with continuous innovation and change, and now there is also a very good performance of the human body suitable for cranial repair materials. Nowadays, there are two main types of cranial repair materials used in clinical practice, one is titanium mesh material, and the other is polyether ether ketone peek material. However, in the clinical use of titanium mesh material is found to have certain limitations and shortcomings, such as some patients may be infected after the operation, scalp wear, resulting in the exposure of the material, the patient to receive CT MRI and other medical examinations will have an impact on the outside world will be more sensitive to the hot and cold environment, etc., so titanium mesh material is not particularly ideal. At present, our team of physicians widely used polyether ether ketone peek material performance is very excellent, can be very good to avoid the occurrence of the above problems. The team continues to improve the technical innovation and material optimization design, and the introduction of cosmetic plastic surgery concept, carry out peek cranial bone repair plastic surgery, can achieve structural integrity, functional perfection, beautiful appearance of the overall unity, by the majority of cranial defects patients and their families recognized and praised.