Ultrahigh steel box girder transportation device

The utility model provides an ultrahigh steel box girder transporting device. The ultrahigh steel box girder transporting device comprises a ship body, a stopping part and a driving assembly. A limiting groove with an upward opening is concavely formed in a deck of the ship body and is used for allowing wheels of a transport vehicle to enter from back to front; the stopping part is movably arranged on the bottom wall of the limiting groove in the vertical direction so as to be provided with a first working position protruding out of the bottom wall and a second working position retracting to be lower than the bottom wall. And the driving assembly is arranged on the deck, is in driving connection with the stopping part and is used for being triggered by the wheels in the process that the wheels enter the limiting groove from back to front so as to drive the stopping part to be switched to the first working position from the second working position. According to the scheme, the driving assembly is triggered thr