The utility model discloses a centring device is prevented to cold board car of sintered ring, including the bottom plate, the welding just keeps off the drive of pretext drive arrangement and is in at the vertical baffle of bottom plate one side, the fender head of slidable mounting above the bottom plate move on the bottom plate, penetrate an at least guide bar between baffle and fender head, every the cover has at least a set of reset spring on the guide bar, the guide bar penetrates the interior just end of fender head in keeping off the head after piercing through the baffle. The utilitymodel discloses a centring device is prevented to cold board car of sintered ring has following characteristics: simple structure, the installation is maintained in a flexible way, and obvious in effect. At cold this device of board car wheel inner circle side -mounting of ring, prevention that the device can be fine is worn and torn because of the platform truck wheel edge of a wing, or the vehicle that vehicle guide rail unevenness caused falls the rail phenomenon.