After data becomes a necessary and Keyfactor of production，the facilities used to provide data become the infrastructure to support the economy and society. Beijing is a national leader in the construction of data infrastructure such as 5G，Internet of things and cloud computing. It continues to enable industrial upgrading and urban development，but it still faces many challenges such as independent control and application effect. To speed up the construction of Beijing’s data infrastructure in the new era，we should make breakthroughs in the research and development of Keydigital technologies，the interconnection of data infrastructure，the support for urban fine management and the promotion of the coordinated development of Beijing，Tianjin and Hebei，so as to comprehensively improve the construction and operation level of Beijing’s data infrastructure.