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At present, the on-board equipment of rail transit vehicles cannot be started or the starting time is too long; The traditional manual test method of equipment startup completely depends on manual test, which requires manual power on and power off, manual observation of data or interface, and manual calculation of time, which will inevitably have large errors, and the rate is low, very low, and prone to errors; In order to ensure the stability of various on-board control equipment in the operation process, automate the test process, and improve the efficiency and accuracy of the test, the program-controlled power output device is used to automatically complete the power-off and restart process of the equipment according to the user's test instructions, and the time statistics device is used to automatically complete the start-up time test of on-board control equipment with MVB and trdp as the communication mode according to the user's test instructions; With the help of the test method of the start- up time of the on-board equipment of rail transit, the long-time start-up test of the on-board control equipment can be completed automatically, and the results of each experiment can be counted to provide guarantee for the stable operation of the equipment.