The utility model provides a slide -wire rail of built -in copper conductor and motion power supply system that cigarette used with storage cabinet for for the power supply of straight sports car driving motor, the inside distribution of slide -wire rail has the mounted position of four copper conductors, is used for built -in copper conductor, and the open end of slide -wire rail is equipped with the bayonet socket, and open end is equipped with the guide rail, be used for with pulley cooperation motion, be equipped with the opening in the middle of the guide rail working face, power supply port connects copper conductor, the interior brush of current collector respectively with the slide -wire rail in copper conductor contact, this system uses the slide -wire rail of built -in conductor and the mode of current collector cooperation power supply, has thoroughly replaced the external condition of traditional power supply wire, this system adopts the design of structureization, can extensively be applicable to various straight line shapes, curved dynamic power occasion according to the nimble topological mode that changes whole piece power supply system of the occasion of concrete use, higher reliability, insulating nature is higher between electrode insulation nature, built -in conductor and shell, can reach IP44 protection level.