Aiming at the problem that the current method is used by provincial digital seismic network to judge whether the boundary earthquakes need rapid report or not,based on the boundary data of the administrative region of Inner Mongolia Autonomous Region,the envelop line principle in geometry is used to present the Inner Mongolia earthquake rapid reporting range in the form of envelop line in Matlab. By interpreting the data interface of Msdp seismic analysis software,the earthquake rapid reporting range of Inner Mongolia is confirmed automatically in Msdp. The results of the application of judging whether boundary earthquakes need rapid report by using intelligent earthquake rapid reporting range and the present way of manual measurement respectively shows that the automatic confirmation of earthquake rapid reporting range can improve the degree of automation of the rapid reporting business software system,simplify the operation process of earthquake rapid reporting work,reduce the time of rapid reporting work and improve the accuracy of rapid reporting work.