The Ministry of Industry and Information Technology, the Cyberspace Administration of China, the Central Air Traffic Management Bureau, the National Development and Reform Commission, and the Civil Aviation Administration of China have collectively released the Implementation Guidelines on Enhancing the Information and Communication Industry's Capacity Building to Bolster the Development of Low-Altitude Infrastructure. The guidelines set forth the ambition that by 2027, the nationwide coverage rate of ground-based mobile communication networks for low-altitude public air routes will achieve a minimum of 90%. They also aim to further refine and mature diversified, integrated sensing solutions, and continuously elevate the standard of low-altitude navigation services. Concurrently, the development of no fewer than 10 standards for information infrastructure is planned, along with the establishment of a series of exemplary low-altitude application scenarios in domains such as urban governance, logistics and transportation, and cultural tourism. To realize these objectives, the guidelines delineate pivotal tasks focusing on information infrastructure, including low-altitude communication, surveillance, navigation, and intelligent connected systems. These encompass expanding communication network coverage for low-altitude environments as required, investigating the creation of collaborative service capabilities through multi-source detection, refining the accuracy of navigation services, and backing the construction of low-altitude intelligent connected systems. Furthermore, the guidelines put forward concrete actions such as organizing experimental validations, boosting industrial supply capabilities, fostering integrated collaboration and standardized development, reinforcing network and data security protections, and optimizing frequency allocation.