As an important driving force for ensuring steady growth, this year, we have coordinated policies and measures from the central and local governments on digital infrastructure, and developed a number of major projects that lay the foundation, deliver long-term benefits, and support high-quality development of the national economy. It is estimated that the multiplier effect of digital infrastructure investment such as 5G, AI (artificial intelligence) and industrial Internet will reach about six times. By 2025, digital infrastructure will create an industrial scale of 8.3 trillion yuan for China's information consumption.

Yun-ming zhang, vice-minister of industry and information technology in the 2022 world telecommunication and information society day conference pointed out that the short term, demand contraction, supply shocks, is expected to weaken "triple pressure superposition COVID - 19" epidemic "surprises" unexpected factors, such as the complexity of the economic development of our country environment, gravity, uncertainty, rising economic downward pressure should not be ignored, There is an urgent need to expand effective investment and stabilize economic growth with new infrastructure construction as the focus.

United Nations divided the digital economy into ICT as the core of the digital infrastructure, platform as the core of the emerging digital economy industry and the digital transformation of traditional industry transformation of three parts, including digital infrastructure is the core of the physical world and digital world fusion power, decided to digital economy development potential and competitiveness. Major countries around the world have introduced relevant strategies to build new advantages for national competitive development in the era of digital economy.

At present, 42 per cent of adults in Europe still lack basic digital skills and only 12 per cent of European smes use data analytics. The pandemic has highlighted Europe's "digital poverty" and the emergence of a "digital divide" between companies that have fully adapted to the digital environment and those that have not.

The European Union in 2021 began to implement the strategy of "digital" European digital infrastructure, to the project funding of 9.2 billion euros, hope that through investment in supercomputing, AI, network security and other fields, is expected to create 4 million jobs, to ensure that Europe has the skills required to cope with the challenge of all kinds of digital and infrastructure, promoting the international competitiveness of the eu. In March 2021, the European Commission issued the "2030 Digital Compass: The EU's Digital Decade Strategy", strengthening investment in digital infrastructure and forming a digital sovereign "state". It plans to achieve gigabit network coverage in all European homes and 5G coverage in densely populated areas by 2030. Deploy 10,000 edge nodes in Europe to ensure enterprise access to data services with low latency.

The large-scale expansion of US digital infrastructure focuses on the role of private enterprises. In 2018, the Legislative Outline for Rebuilding Infrastructure in the United States proposed the development of digital infrastructure such as autonomous driving, new rail transportation technology and unmanned aerial vehicles. Most of the investment is from private enterprise investment and bonds, and through infrastructure construction, manufacturing will be promoted and emerging industries will be promoted. In June 2021, the US government released a trillion-level infrastructure plan called "Building a Better Future" to promote 5G, AI and other digital infrastructure. Michael Mandel, a professor at Johns Hopkins University, has estimated that full deployment of 5G could boost US productivity by 11 percent. The Electric Power Research Institute estimates that digital dynamic pricing and smart grids are expected to generate $31 billion to $50 billion in annual average economic gains for the United States.