Taking the earthquake disaster in multi-source heterogeneous data as the research object,aiming for some issues such as the earthquake disaster data for slow and fragmentation,the public information on disaster data heterogeneous,multidimensional,large difference of data format,data dimension caused by missing data which can not get comprehensive utilization,decision support,in this paper we proposed a technical specification of integrated coding and interface for multi-source heterogeneous seismic data which is based on standardization of information related to disaster management. At the same time,the integrated coding management of disaster data and disaster data access based on open interface specification are implemented according to the specification,including the disaster data storage,management,real-time release of the whole cycle of integrated management. This paper presents a unified representation model of multi-source heterogeneous emergency information big data resources,which provides technical support for post-earthquake emergency management and improves the efficiency of disaster data management.