The MapGIS smart city spatio-temporal big data platform collects urban spatio-temporal information such as basic geographic information data, public thematic data, real-time perception data of the Internet of Things, Internet data and local extended characteristic thematic data through big data, the Internet of Things, cloud computing and other information technologies, to achieve the convergence, governance and integrated management of spatio-temporal data resources, provide unified services for all kinds of smart applications, and build a smart city application base.