The utility model relates to a movable stage vehicle that carriage plates of a carriage can be turned over into a performance stage. The movable stage vehicle comprises a carriage type hanging vehicle towed by a locomotive, a stage ceiling raising at the top of a hydraulic pressure device, and a bedplate, wherein both ends of a vehicle rack of the hanging vehicle are provided with bedplate supports, both sides of a soleplate of the hanging vehicle are hinged with a movable bedplate of which the length is equal to that of a soleplate, a top plate of the hanging vehicle is hinged with the carrier plates at two sides, back plates are opened oppositely and the carrier plates are respectively hinged with side plates. The utility model has the advantages of automatic expansion and easy operation, and is particularly suitable for the movable stage vehicle that an opening of a stage faces a tail part.