PROBLEM TO BE SOLVED: To provide a hydroponic cultivation system with a relatively low introduction cost and easy maintenance. SOLUTION: The cultivation container 1 is provided with a cultivation plate 2, a cultivation plate 2 having micropores 3 for planting plant species floating on the surface of the cultivation liquid when the cultivation container is filled with the liquid manure, and a cultivation plate 2 directly below the cultivation plate 2. A hydroponic cultivation system comprising a shelf for allowing one or a plurality of hydroponic cultivation units including the porous particles 4 to stand, and a rack including one or a plurality of shelves. [Selection diagram] Figure 1【課題】導入コストが比較的低価であり,メインテナンスも容易な水耕栽培システムの提供。【解決手段】栽培容器1と,栽培容器内に液肥を充填した際に液肥表面に浮遊する植物種を植えるための微細孔3を備える栽培用プレート2と,栽培用プレート2の直下に備えられる多孔質粒子4とからなる水耕栽培ユニットを,一つ又は複数静置するための棚と,棚を一つ又は複数備えるラックとからなる水耕栽培システム。【選択図】図1