Considered as an important element of the third industrial revolution, 3D printing has attracted much attention in recent years. Although its technology is not yet mature, it has been used in many fields, such as toys, home products, medical treatment, food, and even automobile manufacturing. . By organizing 3D printing courses in primary and secondary schools, students can get in touch with 3D printing earlier and explore their design potential and interests, in addition to meeting the current educational trend of STEAM. The 3D printing course will allow students to experience 3D printing for themselves, including learning to operate a 3D printer and learning how to use 3D drawing software to draw 3D drawings, and to understand what 3D printing is and its industry applications. We allow students to be creative and design their own products. Each class takes away the 3D drawings drawn by the students, and each student will be given at least one 3D model designed by him before the end of the course.