A plant cultivation facility includes multiple cultivation racks, each of the cultivation racks including multiple shelves for cultivating plants and a pair of closed sides extending in a longitudinal direction, the shelves each forming a tube inner space extending in the longitudinal direction. Each shelf includes an air inlet formed as an opening on one end of the tube inner space and an air outlet formed as an opening on the other end. The plant cultivation facility further includes: a cultivation room containing the cultivation racks； an air-conditioning room separated from the cultivation room； an air-conditioning device positioned in the air-conditioning room for sucking air from the cultivation racks through the air outlets into the air-conditioning room； and a discharge pipe positioned in the air-conditioning room, the discharge pipe being connected to the air-conditioning device for forwarding air from the air-conditioning room to be released into the cultivation room.
