PROBLEM TO BE SOLVED: To provide a plant cultivation apparatus, which can properly homogenize and maintain air quality conditions suitable for plant cultivation and can contribute to plant quality stability and harvest increment.SOLUTION: According to the present invention, there is provided a plant cultivation apparatus that comprises: a housing 1 having a space for cultivating a plant 5 therein; an air recovery pipe 7 connected to a recovery hole 6 of the housing for recovering air in the housing; an air conditioner 2 that adjusts the temperature, humidity, and COconcentration of the air recovered from the recovery hole through the air recovery pipe to the conditions corresponding to the cultivation of the plant; and an air supply pipe 3 that connects the air conditioner and the supply hole 4 of the housing and supplies the adjusted air to the inside of the housing from the supply hole of the housing by the air conditioner.SELECTED DRAWING: Figure 1【課題】 植物の栽培に適した空質条件を適正に均質化し、維持することができ、植物の品質安定及び収穫増量に寄与できる植物栽培装置を提供する。【解決手段】 植物5を栽培する空間を内部に有する筐体1と、筐体内の空気を回収する筐体の回収穴6と連結された空気回収用配管7と、回収穴から空気回収用配管を介して回収した空気の温度、湿度、及びCO2濃度を植物の栽培に対応した条件に調整する空調装置2と、空調装置と筐体の供給穴4とを連結して、空調装置で調整後の空気を筐体の供給穴から筐体内に供給する空気供給用配管3と、を備える。【選択図】図1