分析了当前电力系统发电设备故障诊断中存在的问题，提出了解决方案—— 基于Internet的发电设备状态监测与诊断，介绍了基于Internet的发电机组远程监测诊断系统的结构与实现技术，并从实时性、安全性的角度，着重分析采用JDBC、Servlet实现方案的优劣。结合作者的实践，介绍了使用Java A pplet、TCP／IP协议和Java Socket技术开发的一套远程状态监测诊断系统。-Analysis of the current generation power system fault diagnosis problems, proposed solutions- Internet-based condition monitoring and diagnosis of power equipment, introduced the Internet-based remote monitoring and diagnosis system generator structure and techniques, and from real-time , security point of view, analyzed using JDBC, Servlet realize the advantages and disadvantages. Combination of practice, describes the use of Java A pplet, TCP/IP protocols and technology development of a set of Java Socket Remote monitoring and diagnosis system.