The utility model discloses a high -speed railway switch equipment of polishing, including power pack, polish unit and support, power pack provides power with the unit connection of polishing for the unit of polishing, and the unit of polishing includes outer frame, interior frame and griding assembly, support and outer frame fixed connection, and two concentric shaft and outer frame swing joint are passed through respectively to interior frame both ends, and griding assembly sets up in interior frame, with interior frame sliding connection, is provided with the locking subassembly that slides between griding assembly and interior frame, and outer frame lower part is provided with rail centre gripping subassembly, and outer frame both ends are provided with removal locking subassembly, and interior rack end installs the gear, and the gear is connected with the rotating electrical machines, is provided with the spin locking subassembly between outer frame and interior frame. Its simple structure, convenient to use, it polishes to possess eliminates that switch area welded joint handles, the ripples grinds and the multiple functions of diseases such as ripple, can move on the rail, can carry out all -round polishing to the rail railhead, and the range of application is wide, and it is effectual to polish.