基于Matlab可视化图形用户界面程序，编制基于Mapinfo地理信息和双差地震精定位结果的地图及地震震中分布绘制软件，为地震预报研究提供高精度的震中分布图。运用该软件绘制重庆荣昌地区地震震中分布，可较好反映区域范围内构造展布情况，对地震研究起到积极作用。

Software for drawing of epicenter distribution based on Matlab GUI and Mapinfo and double difference algorithm is developing in this article. This software can provide precise epicenter distribution for research of earthquake prediction. This software is used for drawing epicenter distribution of Rongchang area in Chongqing. The result reflected the distribution of seism tectonic in this area better. It’s play an active role in the study of earthquakes.