In April this year, for the first time, the government defined the scope of "new infrastructure", including innovative infrastructure, whose core is "comprehensive digitalization". So what are the challenges of digitalizing traditional infrastructure? In Shanghai's Qingpu District, the 4-story building is printed by 3D printing technology. In this park, reporters saw that innovative infrastructure products such as 3D printing stations, plant walls and isolation houses are everywhere. In just a few months, these products have applied for 53 new patents and accumulated more than 230 kinds of scientific research data. The so-called 3D printing architecture refers to the use of self-developed special ink to achieve on-site printing through digital modeling and programming. This kind of ink is made of urban construction, steel plant waste, desert sand and other materials. It is environmental friendly and economical.