3D printing process refers to the autonomous "printing" of continuous layers of soft, liquid, or powdered materials by machines, which rapidly harden or fuse to form three-dimensional solid objects. Since its inception in the 1980s, 3D printing technology has made significant progress and is widely used in manufacturing, medical, aerospace and other fields. Scientists have used 3D printing technology to print rockets, food, and even directly 3D printed biomaterials inside the human body. In a recent report, the US business and technology blog website techdee.com pointed out that with the further development of technology, 3D printing will continue to play an important role in multiple fields, and its six major development trends may affect and change the world. Since sending a 3D printer to the International Space Station in 2014, NASA has been conducting 3D printing experiments in space, using 3D printers to manufacture various objects required for the International Space Station. For the first time on the International Space Station, Russian astronauts have used a 3D printer to create the necessary components for space work - the camera holder. The emergence of 3D printers allows astronauts to directly print the necessary components and tools in space without waiting for them to be "shipped" from Earth. In addition, in the microgravity environment of space, biological organs and tissues printed in 3D are maturing faster and more efficient than those on the earth. Scientists are expected to print human organ on the International Space Station with 3D printing technology. Meeting the needs of precision medicine, biological (organ) printing technology is expected to change the world. Bioprinting includes the use of 3D printing technology to create biological structures such as human tissues and organs. Although this technology is still in its early stages, it has shown attractive prospects, driven by "the real needs of humanity". In the future, bioprinting can eliminate the need for donated organs. For example, last June, an American regenerative medicine manufacturing company announced that a 20-year-old female with dysplasia of her right ear at birth had transplanted an ear 3D printed by her own cells. The company claims that this is the first known example of a 3D printed organ made from living tissue, and in the future, 3D printing can generate more complex liver, kidney, and pancreas. In addition, bioprinting allows doctors to print personalized medications for specific patients. Biological 3D printing is also beginning to move deeper into the human body. Australian engineers have developed a micro soft robot arm that can directly 3D print biological materials to human organ. In the future, doctors are expected to send the device to inaccessible areas of the human body through small skin incisions, simplify future medical procedures, and speed up disease healing. The development of new aircraft, rockets, and aerospace fields has long been utilizing 3D printing technology for prototype production and production, and this trend will continue to advance rapidly in 2023. For example, NASA has used 3D printing technology to manufacture rocket engines, which may lead to more efficient and cost-effective space travel. Relativity, a private aerospace company in the United States, even produced the first 3D printed rocket, the Human One. The "Human Race One" is 33.5 meters high and 85% of its composition