Folding sofa bed

The utility model discloses a folding sofa bed, relates to the sofa technical field, including base, the both left and right ends of base top are equipped with the mounting groove, the middle end in the mounting groove hinge joint is equipped with the rotating rod, the inside of rotating rod is movably equipped with the connecting rod, the top of connecting rod hinge joint is equipped with the bearing plate. When in use, the bearing plate is dragged forwards to drive the rotating rod to turn forwards along the interior of the mounting groove, the rotating rod slides in the connecting rod to drive the bearing plate to move to the front of the base, the mortise and tenon joint on the rear side of the bearing plate is connected into the riveting hole, and then the front supporting leg is turned over to support downwards; meanwhile, the backrest is put down backwards, the rear supporting leg support is put down, then the armrest cushions on the two sides are turned inwards, the rotating plates are turned inwards