Abstract:On the basis of the Oracle 10g distributed database, we created the seismic precursor database to store data dictionary information, observation data and observation log, etc. Through data exchange, the seismic precursor data sharing has been realized in multilevel nodes such as in precursor station, regional center, national center and subject center. Using C# language, we have developed the integrated management system for seismic precursor database, the system is divided into the parameter setting area, the tree view area, function refinement zone, centralized displaying graphics, data, log, dictionary, etc, the operating status of the precursor network was monitored intensively.