Hydroponic vegetable circulating planting system

The utility model relates to a circulating planting system for hydroponic vegetables. Support frame, a plurality of planting systems and a cleaning system are arranged on the supporting frame side byside. Wherein the planting system and the cleaning system are arranged in parallel, the cleaning system and each set of planting system respectively comprise a circulating conveying chain mechanism, aplanting pipe is placed on a conveying chain of each circulating conveying chain mechanism, the two ends of each circulating conveying chain mechanism are respectively provided with a transferring conveying mechanism in a butt joint mode, and the transferring conveying mechanisms on the same side are longitudinally connected into a whole; a planting pipe internal cleaning device and a planting pipe disinfection device are sequentially arranged above a circulating conveying chain mechanism in the cleaning system, and a planting pipe external cleaning device is further arranged between the cleaning system and the transf