The skull is a very important bone in the human skeleton, and the skull itself is also very hard, but it cannot withstand the serious impact of external irresistible forces, so such problems as cranial defects will often occur. Once the skull defect, the appearance is not good for sure, more importantly, it will cause a series of skull defect syndrome, which is a great threat to health and patients should not ignore it. Medically, the most critical step for cranial defect problem is to have cranial repair surgery in order to restore the integrity of the skull before it is too late. However, the use of materials in the skull repair problem is directly affected by the outcome of the surgery. How much does it cost to repair a skull chip the size of an egg with titanium mesh? An egg-sized skull chip is already very serious, and skull repair surgery is inevitable. Nowadays, many hospitals are using titanium mesh material for the surgery, but how effective is it? Relatively speaking, the price of titanium mesh material is still relatively cheap, and there is some progress compared with those materials in the past, but there are still some unavoidable defects problems. For example, post-operative infections, rejection, destruction of scalp tissue, and even the presence of exposed material. Moreover, titanium mesh material is a metal material, which is not very well insulated, and the patient will be very sensitive to the external hot and cold environment after surgery. Obviously, titanium mesh is not the only choice and not the best choice for skull repair surgery. In order to bring hope to the majority of patients, we are currently applying a new type of polyetheretherketone PEEK material. This is a very advanced polymer material that overcomes the disadvantages of titanium mesh and is ideal for post-operative recovery, making it the ideal material for skull repair. At the same time, our team continues to make technical improvements and upgrades and material optimization design, and introduces the concept of aesthetic plastic surgery, the effect is more natural and beautiful, achieving good clinical results and social benefits.