The earthquake intensity rapid reporting and early warning system consists of five key modules:the station observation system,data processing system,emergency earthquake information service system,network communication system,and technical support system. This study focuses on planning and designing the architecture of the publishing system within the emergency information service module. It also introduces the MQTT protocol and Haproxy open-source software as core components. To demonstrate the system's effectiveness,this paper uses the release of early warning information during recent earthquakes in Lushan as a case study. The analysis highlights the system's advantages and functionality in delivering timely and reliable earthquake early warnings.