Rail transit full-life-cycle cost statistical method, system, equipment and medium

The embodiment of the invention provides a rail transit full-life-cycle cost statistical method, system and device and a medium, and the method comprises the steps: obtaining the actual occurrence cost, and correspondingly obtaining the product research and development cost and the engineering implementation cost according to the research and development cost and the implementation cost in the actual occurrence cost; acquiring equipment information and man-hour information, and acquiring an equipment failure rate function in a warranty period, which changes along with time, according to the equipment failure rate and the equipment warranty period; counting field replacement working hours and factory return maintenance working hours when the equipment breaks down according to the working hour information; according to the equipment fault information, the equipment fault rate function, the on-site replacement man-hour, the factory return maintenance man-hour and the fault type cost in the actual occurrence cost