Abstract: Targeting the problems existing in vehicle-wayside communication in the actual operation of Beijing Metro, the application status and business requirements of vehicle-wayside communication are expounded. A typical test section is selected to design and build an LTE-M (long-term evolution metro) system. Through dynamic testing and analysis, it is verified that the basic performance and carrying capacity of the LTE-M system in the 10 MHz and 20 MHz bandwidths are presented, corresponding application suggestions are put forward.