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In order to evaluate the performance of the train-ground wireless communication system of urban rail transit, this paper analyzed the characteristics of urban rail transit wireless environment, using hardware-in-the-loop combining with interference signal source to simulate different interference environment. Therefore, an evaluation platform with interference scenarios or different handover frequency for evaluating the performance of the train-ground wireless communication system is designed and implemented. At the same time, the system can be directly applied to CBTC based urban rail transit train-ground wireless communication system to evaluate the performance.