The utility model discloses a vestibule is even hung to rail vehicle relates to rail vehicle accessory technical field, including transition footboard and two sets of coupling mechanism, two sets of coupling mechanism all set up above the coupling, just link to each other with adjacent vehicle automobile body respectively, and the transition footboard links to each other with a set of coupling mechanism, just sets up organizes the coupling mechanism top at another, can avoid the vehicle to prevent through curve track the time that both sides vehicle vestibule the backup pad less and crowded operating personnel's of wound in clearance unsafe factor such as foot from appearing, two sets of coupling mechanism's support frame articulates respectively on the automobile body, and the support frame is L type cold -formed steel, has manufacturability advantage strong, with low costs, has avoided some the bad factors because of adopting cast structure to produce, coupling mechanism's backup pad adopts general carbon steel panel punch hole technology, makes its upper surface form the fashioned anti -skidding boss that fluctuates, improves anti -skidding ability, has effectively improved operating personnel's security. The utility model has the advantages of simple structure, convenient operation, factor of safety height.