介绍了基于CDMA移动通信技术的铁路移动卫星通信平台系统 ,在高速运行机车 (列车 )和地面调度所之间建立了一个远程、实时、广域空间的双向数据通信平台 ,保证了铁路DMIS、TMIS等系统远程数据通信服务和数据采集的实时性 ,实现了铁路运输调度的及时性和准确性 This paper introduces a railway mobile satellite communication platform system based on CDMA mobile communication technology and establishes a long-distance, real-time and wide-area two-way data communication platform between high-speed locomotive (train) and ground dispatching station to ensure that the railway DMIS, TMIS System remote data communication services and real-time data acquisition to achieve the timeliness and accuracy of railway transport scheduling