The invention relates to an upper beam assembly for an elevator cage, belonging to the technical field of man-riding elevating devices. The assembly comprises two upper horizontal beams, wherein the two ends of the upper beams are fixedly connected through guide shoe mounting plates positioned above the upper beams, thereby forming a rectangular frame; the inner sides of the two guide shoe mounting plates are provided with guide wheels supported between the two upper beams respectively; connecting plates for mounting an air conditioner are fixed above the middles of the two upper beams; dustproof covers covering guide wheels are arranged on both sides of the connecting plates respectively. Since the connecting plates are fixedly connected with the upper beams, the rigidity and intensity of an upper beam frame structure are enhanced. The upper beam frame structure is obviously lower than the dustproof covers covering the two guide wheels, thereby forming a concave space capable of holding the air conditioner on the tops of the upper beams, remarkably reducing the space occupied by the air conditioner on the top of the cage, and well solving the problems of narrow top space of the cage and difficulty in mounting the air conditioner.