A single architecture cannot meet the demand for the development of an emergency early warning auxiliary decision system.In order to solve this problem,a microservice architecture is introduced to design and develop the system.By analyzing the advantages of applying a microservice architecture in a complex systeminstead of a traditional monomer-type structure,we designed a microservice architecture based on the emergency early warning information release auxiliary decision system.This system selects the Spring Cloud service framework,and makes an appropriate extension on itto create the registry and gateway based on the system design.The system adopts a 2D and 3D integrated geographic information system as the display platform.By accessing the static monitoring data and hazard source dymamic monitoring data on various industries,the system can integrate and processes data according to the set mode,and assists in command and decision-making in the early warning information generation,release,and emergency response stages.This design scheme has been applied tothe Hubei province emergency early warning and release aided decision system.The rationality and effectiveness of this kind of system,which uses a microservice architecture,has been verified.