Public emergencies have brought new challenges to urban construction and urban governance due to the complex causes, widespread impacts, and diverse hazards. Based on the connotation and impact of smart city construction, the article analyzes the function and role of smart citiy in responding to public emergency and in response to urban governance problem in public emergency. It also puts forward the path of smart city construction to promote urban governance transformation under public emergencies, which includes enhancing big data prediction and service capabilities of smart cities, using smart government to promote efficiency and coordination of urban emergency management, increasing smart emergency refuge space planning and construction efforts, developing smart manufacturing and smart logistics to enhance the urban emergency supplies guarantee function, improving the resilience of urban community management technology with smart community construction, providing reference for solving "big city disease", and improving the ability to respond to public emergencies and the level of urban governance.

public emergencies  /  smart city  /  urban governance