PROBLEM TO BE SOLVED: To provide a hydroponic system by which a working space in a plant factory is saved to increase the cropping area, and the working efficiency of a worker is enhanced.SOLUTION: The hydroponic system 100 includes: a culture water tank 10 which has a recurrence channel 11 that floats and moves culture panels 20 and that can put in and recover the culture panels 20 in a single working site 40； and a lighting device 30 which is attached to the culture water tank 10 and lights the culture panels 20 floated and moved in the recurrence channel 11.【課題】植物工場における作業場所を減少させて作付面積を増加させると共に、作業者の作業効率を高める。【解決手段】本発明の水耕栽培システム１００は、栽培パネル２０を浮遊移動させる回帰水路１１であって、一つの作業場所４０で栽培パネル２０を投入及び回収できる回帰水路１１を有する栽培水槽１０と、栽培水槽１０に付設され、回帰水路１１を浮遊移動する栽培パネル２０を照明する照明装置３０と、を具備する。【選択図】図１
