The invention discloses a broadside boarding platform device. The broadside boarding platform device comprises an upper platform rotatably connected to a ship shell plating, a main platform rotatablyconnected to a longitudinal bulkhead, a main platform retraction and
discharge oil cylinder, a telescopic
gangway ladder, a
gangway ladder lifting oil cylinder and a hydraulic master
control system, wherein the position of the upper platform is rotatably switched between the horizontal position and the vertical position, the main platform retraction and
discharge oil cylinder is rotatably connected to the end surface, away from
sea level, of the main platform, the freedom end of a push rod of the main platform retraction and
discharge oil cylinder is rotatably connected to the longitudinal bulkhead, the
gangway ladder lifting oil cylinder is rotatably connected to the end surface, away from the
sea level, of the main platform, the freedom end of the gangway ladder lifting oil cylinder is rotatably connected to the telescopic gangway ladder to drive the telescopic gangway ladder to switch between the open state and the close state, and all the cylinders are uniformly controlled throughthe hydraulic master
control system. According to the broadside boarding platform device, boarding platform automatic retraction and discharge are achieved, the automatic degree is improved, and safety of
crew members is ensured.