With its unique manufacturing technology, 3D printing allows us to produce unprecedented types of items. However, the real advantage of 3D printing technology lies in its printing materials. Only by developing more new materials can the application fields of 3D printing technology be expanded. At present, 3D printing materials mainly include engineering plastics, photosensitive resins, rubber materials, metal materials, and ceramic materials. In addition, food materials such as colored plaster materials, artificial bone meal, cellular biological materials, and sugar can also be used in the field of 3D printing.