Urban lifeline management is a key area and core content of urban emergency management, and it is the basic requirement and important guarantee for national infrastructure governance. The urban lifeline is an indispensable infrastructure to sustain the production and life of urban residents, and is a key system of interrelation and interdependence related to the fundamental safety of the city. Since urban lifeline has the characteristics of being basic, public, systematic, relevant, professional, complex and fragile, urban lifeline management needs to follow the principles of sustainable development, number management, cost control, scientific evaluation and the rule of law guarantee.It is necessary to establish a data classification management system from the aspects of urban transportation big data, urban energy big data, urban water affairs big data, urban medical big data, urban communication big data, urban fire protection big data, and urban defense big data, and actively carry out urban lifeline space management, urban lifeline time management, urban lifeline operation and maintenance management, urban lifeline monitoring management, urban lifeline emergency management and urban lifeline collaborative management. There is no doubt that urban lifeline management is inseparable from the planning and design of big data thinking and the support of big data technology. To a certain extent, urban lifeline management in the era of big data must establish a riskcentered urban lifeline management system, a perfect urban lifeline public data platform, a big datadriven urban lifeline system capacity and a big datadriven lifeline emergency management plan. With the rapid development of the Internet, big data and artificial intelligence, urban lifeline management will become more and more digital, precise, intelligent and legalized.