Digital infrastructure is a new type of infrastructure based on the present and facing the future. It conforms to the social development trend of networking，digitization and intelligence，and provides a platform and guarantee for the new production and lifestyle of mankind in the future. In order to accelerate the construction of Beijing’s “four centers”，research on Beijing’s digital infrastructure is essential. This report will analyze the indicators related to digital infrastructure，compare the digital level of Beijing with other provinces and cities，and gain a deeper understanding of the important role of digital infrastructure in the digitalization process of Beijing，and use this research to form the foundation of Beijing’s digitalization Provide advice on facility development.