How to make multi-algorithm and multi-center fusion and decision is the critically technical issue in the construction of the China Earthquake Early Warning Network. By combining with the technological development status and discipline management needs of seismological science,as well as the information service requirements in the China Earthquake Early Warning project,we established the comprehensive earthquake information fusion and decision-making platform for earthquake early warning,seismic intensity rapid reporting and rapid earthquake information report business needs. As the key information channel between the data processing system and the emergency information service system,the platform is responsible for gathering and integrating the processing results of multiple sets of processing algorithms from multiple centers at the national and provincial levels,carrying out the same event judgement,determining the reliability of information,information fusion and decision-making processing. The reliable,accurate and timely information after the fusion and decision is provided to the emergency earthquake information service system and is released externally through the information release platform. The public,government agencies and specific professional users can use the last fusion and decision-making information for hazard mitigation and emergency rescue.