PROBLEM TO BE SOLVED: To provide a plant cultivation device which is easy to maintain. An artificial light type plant cultivating apparatus 1 including a cultivating unit U capable of hermetically sealing the inside, which is connected to a cultivating chamber 10 for cultivating a plant and a liquid storage tank 41 in the cultivating unit U, A liquid supply path 42 through which the liquid stored in the liquid storage tank 41 flows to the cultivation room 10, and a liquid recovery path 46, 47, 48 through which the liquid recovered from the cultivation room flows to a liquid recovery tank 49, The liquid supply path 42 and the liquid recovery paths 46, 47, 48 are arranged on one surface side of the side surfaces of the cultivation chamber 10. [Selection diagram] Fig. 3【課題】メンテナンスが容易な植物栽培装置を提供する。【解決手段】内部を密閉可能な栽培ユニットＵを備える人工光型の植物栽培装置１であって、前記栽培ユニットＵ内に、植物を栽培する栽培室１０と、液体貯留タンク４１に連結され、前記液体貯留タンク４１内に貯留された液体が前記栽培室１０へ流れる液体供給路４２と、前記栽培室から回収された液体が液体回収タンク４９へと流れる液体回収路４６，４７，４８と、を有し、前記液体供給路４２と前記液体回収路４６，４７，４８とは、前記栽培室１０の側面のうちの一面側に配置されている。【選択図】図３
