Abstract:After the completion of ‘the tenth fiveyear plan’ project for the earthquake precursory observatory system, it is the focus of the application of earthquake precursory information to develop data sharing application.It has summaried the data types of the earthquake precursory information which can be used by WebGIS application and a WebGIS application scheme which adapts itself to the current running earthquake precursory system is given also. An instance based on this scheme is discussed to demonstrate that this scheme can be implemented and makes user more convenient and is efficient to use the earthquake precursory information.