介绍基于GPRS的APN无线网络通讯技术，并应用于地震前兆观测系统。实际运行结果表明，应用该技术系统可提高数据传输的稳定性、可靠性、安全性和实时性，是地震前兆观测数据传输的有效通讯手段。

In this article, the APN wireless network communication technology based on GPRS is introduced. The application of this technique in earthquake precursor observation system is studied．Actual operating results have shown that the application of this technique could improve stability，reliability，security and realtime during the data transmission of the earthquake precursor observation and the technique can be an effective means in the future．