Abstract: We establish a preliminary platform for earthquake emergency map service model based on Map World and ArcGIS API. Through the access to the REST API and the application of spatial data tools, the functions of earthquake emergency basic data, seismic loss prediction range release, seismic space information query and location service, on-site disaster feedback and annotation, and thematic map printing are displayed. Based on the Map World and the various tools of the ArcGIS API, the platform builds an interactive, distributed and dynamic system architecture to realize the basic earthquake emergency map data service and complete the modularization and interface of functions. It also tries to explore a preliminary plan of earthquake emergency map service to solve the timeliness, efficiency and propagation problems of earthquake thematic map data, provide auxiliary support means for earthquake-time command and decision-making, and provide reference for the future integration of multi-hazard information platform.