3D printing provides an excellent solution for precision medicine. 3D printing technology can synthesize a three-dimensional model based on the patient's CT or MRI data, and then print the case model through a 3D printer to quickly obtain a medical model in a very short time. It is used in case analysis and surgical guides to achieve the purpose of visual design, minimally invasive operation, individualized reconstruction and precise treatment. 3D printing technology provides clinicians with more intuitive and comprehensive preoperative planning and surgical simulation, which maximizes the accuracy of surgery and effectively reduces the risk of surgery. In addition, the value that medical 3D printers bring to rehabilitation equipment such as orthopedic insoles, bionic hands, hearing aids, etc., is not only the realization of customization, but also the use of accurate and efficient digital manufacturing technology to replace traditional production methods, which greatly shortens the production cycle. Guarantee to get the product in the shortest time.