In order to solve the problems of slow and fragmented acquisition of post earthquake disaster information,inadequate decision support,and lack of disaster services,this article explores the design and construction of an earthquake emergency information management and release platform. By using big data and cloud computing technology,various earthquake emergency outputs such as rupture process,rapid assessment,and auxiliary decision-making are gathered,and functions such as automatic aggregation of various earthquake emergency information,full process model calculation,and comprehensive display are achieved. This platform has played an important role in earthquake disaster decision-making support and earthquake emergency information services.