A foldable photovoltaic support disclosed by the present invention comprises a bottom plate and a mounting frame, the mounting frame is movably connected to the top of the bottom plate, the left side and the right side of the bottom plate are each fixedly connected with two fixing plates, first bearings are fixedly inserted into the fixing plates, threaded pipes are fixedly arranged in inner cavities of the first bearings in a penetrating manner, and the threaded pipes are fixedly connected with the left side and the right side of the bottom plate. The foldable photovoltaic support comprises a base plate, a mounting frame is arranged on the base plate, threaded pipes are arranged on the mounting frame, threaded rods are arranged in inner cavities of the threaded pipes in a penetrating mode, universal wheels are fixedly connected to the bottom ends of the threaded rods, worms are arranged on the sides, away from the base plate, of worm wheels, and driven rods are arranged on the left side and the right side of the base plate. The universal wheels move downwards to be attached to the ground, the bottom plate is jacked up to be away from the ground, in other words, the solar panel can be folded and stored through work of the motor, meanwhile, the universal wheels move downwards to be attached to the ground, and therefore the support can be conveniently transferred, and two purposes are achieved.