?The true condition of patients with printing products could be reflected realistically by 3D printing technology. ?3D printing renderings could be made on the computer in advance.Purple part and light blue part on the rendering refer to repairing part,and edges of these parts could be printed as guides. ?3D printers,combining with existing medical imaging equipment and computer software,could capture human disease,subtle changes of injury bone for surgeons’reference. More 3D printers used on surgery in the future mean 3D printing is walking into people’s work and life.