Supporting device of lifting scaffold truss

The utility model discloses a supporting device of a lifting scaffold truss, and relates to the technical field of building construction equipment, in particular to a fixing plate and a lifting rod, the lifting rod is fixedly connected to the bottom of the fixing plate, the surface of the bottom of the lifting rod is movably sleeved with a movable cylinder, and the surface of the lifting rod is sleeved with an adjusting nut A in a threaded mode. The adjusting nut A is located over the movable cylinder, the top of the movable cylinder is fixedly connected with a bearing, the bottom of the bearing is fixedly connected with the bottom of the adjusting nut A, and the bearing is movably connected to the surface of the lifting rod in a sleeving mode. By arranging a threaded rod, an adjusting nut B, a movable block, a rotating rod and a supporting rod and rotating the adjusting nut B, the effect that the lifting scaffold is stably supported on the uneven bottom face is achieved, and the problems that an existing sca