3D printing technology is also known as “Additive Manufacturing” technology. It is based on three-dimensional digital model files and innovatively integrates information, materials, biology, control and other technologies. It can perfectly achieve the combination of various materials through its own layer-by-layer additive printing manufacturing method. 3D printing technology has continuously developed since its development, and has been rapidly used in different fields such as industrial design, architecture, military, aerospace, and medical care, and has achieved a series of substantial breakthroughs.