Scan the QR code on the high-speed railway pier, and the detailed information about the pier will immediately appear on the mobile phone screen; Automation equipment replaces manual handling, and the rails are neatly laid into deep mountain tunnels... Today, the extensive application of digital technology has driven the railway construction from project management to production and operation to take on a new look, indicating that the digital transformation of China's traditional infrastructure industry is accelerating, and thus a new development potential is emerging. In recent years, the scale of China's digital economy has continued to expand, becoming a key force in the development of the national economy. According to the China Digital Economy Development Report (2022), in 2021, China's digital economy will reach 45.5 trillion yuan, with a nominal year-on-year growth of 16.2%, accounting for 39.8% of GDP. In the tide of digital economy, digital transformation has become a "required course" for enterprises. In this context, China Railway Corporation (hereinafter referred to as "China Railway") has achieved a comprehensive digital transformation from project management to production and operation by using digital technology, improved the level of refined management, guaranteed the sustainable development of business, enhanced the core competitiveness of the enterprise, set a model for the transformation of traditional infrastructure industry, seized a new highland of digital innovation, and created a digital business card for new infrastructure. Adhering to the concept of scientific and technological innovation to solve the problem of digital transformation, as one of the largest construction contractors in the world, China Railway has successively participated in the construction of more than two-thirds of China's total railway mileage, and has built three fifths of China's urban rail projects. With the continuous expansion of the company's business volume and the acceleration of the globalization layout, the traditional IT architecture has been unable to support the continuous expansion of the business, so it is urgent to achieve transformation and upgrading and improve quality and efficiency. In recent years, with the development and application of new technologies and new infrastructure such as big data, Internet of Things, artificial intelligence, 5G, cloud computing, etc., it has provided a solid foundation for the digital transformation of the traditional infrastructure industry. However, digital transformation can not be completed overnight, let alone mechanically. It needs to meet the needs of enterprises and suit the remedy to the case. For the traditional infrastructure industry, the industry itself lacks standardization. Different forms of business vary widely, such as subways, airports and highways. There is no unified construction standard, and barriers exist between different regions and enterprises. From the perspective of China Railway, the difficulty of digital transformation is how to break the "data island" among enterprises. In the early days, the informatization of China Railway was independently promoted by various business departments, which was limited to the application of finance, manpower, cost and other vertical fields, and the data could not be effectively used, which led to data islands. Adhering to the development concept of "science and technology leading innovation", China Railway vigorously promotes the informatization construction along the direction of "management institutionalization, system process, and process informatization". It will launch the "information connectivity project" and "digital intelligence upgrading project" around 2020 and 2021, which are oriented to management informatization and digitalization, aiming to open up information islands, improve management efficiency, and promote the modernization of enterprise governance system and governance capability; Focusing on the Internet of Things, BIM and other core technologies, and gradually improving the intelligence level of the field construction frontline