Guangzhou epidemic big data by China Mobile, China Unicom Guangzhou Branch (hereinafter referred to as Guangzhou Mobile, Guangzhou Unicom) communication big data support. In accordance with the Guangzhou City epidemic prevention and control work requirements, over the past few days, Guangzhou Mobile, Guangzhou Unicom disciplinary bodies throughout the supervision of the epidemic prevention and control of big data analysis and application, focusing on checking the key hospitals in Guangzhou, key business districts, key scenic spots, key campuses, key transportation hubs and other areas of the population flow accompanied by the relationship between the flow of people, as well as stationed, visiting Hubei and Wuhan customers flow analysis and big data portrait, to provide references for epidemic prevention and control of decision-making.