本文介绍了列车空调机组性能试验台远程监控和诊断系统的工作原理、功能，以及该系统的软、硬件组 成，阐述了软件开发过程的要点和关键技术，并总结了该软件的特点及开发步骤。其研究成果对于节约维修成 本、提髙生产效率,保证列车空调机组安全、可靠运行具有十分重要的意义。

The principle, function, hardware and software are presented in this paper of Remote Control and Diagnose System on the Testing Device of Air-conditioner of Passenger Car,the key points and core techynology are discussed in the process of developing the software, the software's characteristic and developing step are summarized，the work is signif?icant for saving the costs of repair, improving the efficiency and guarantee safe and reliable work of Air-conditioner of Passenger Car.