关键词: 数字经济, 5G, 网络安全, 网络安全风险, 供应链安全, 关键信息基础设施

Abstract: The world is entering a new era of digital economic development. The fifth generation mobile communication technology (5G) is using the emerging technology system to promote the interconnection of all things, build the key information infrastructure for the overall digital transformation of the economy and society, and promote the development of global digital economy. This paper carefully analyses the contribution and influence of 5G to the development of digital economy, the security strategy of 5G global supply chain in various countries under the strategic game of global digital economy, and puts forward corresponding countermeasures for the development of 5G in China, which can provide reference for further promoting the development of 5G in China and supporting the development of network power and digital economy in China.

Key words: digital economy, 5G, network security, network security risk, supply chain security, critical information infrastructure