The purpose of the present invention is to provide a plant cultivation facility capable of strictly controlling the cultivation environment. This plant cultivation facility (10) is provided with a plurality of cultivation shelves (2) having: a plurality of stages (23) for cultivation of plants, each of the stages forming a tubular space extending in the longitudinal direction； and a pair of closed side surfaces (27) extending in the longitudinal direction. Each stage (23) has an air inlet (22) corresponding to an opening at one end of the tubular space, and an air outlet (21) corresponding to an opening at the other end of the tubular space. This plant cultivation facility (10) is further provided with: a cultivation chamber (1) in which the cultivation shelves (2) are placed； an air conditioning chamber (3) separated from the cultivation chamber (1)； an air conditioning device (4) for sucking the air in the cultivation shelves (2) into the air conditioning chamber (3) through the air outlets (21), the air conditioning device (4) being disposed in the air conditioning chamber (3)； and air discharge pipes (44, 45) for delivering air from the air conditioning chamber (3) to discharge the air into the cultivation chamber (1), the air conditioning chamber (3) being disposed in the air conditioning chamber (3) and connected to the air conditioning device (4).La présente invention concerne une installation de culture de plantes capable de réguler strictement l'environnement de culture. Cette installation de culture de plantes (10) est munie d'une pluralité d'étagères de culture (2) comprenant : une pluralité d'étages (23) pour la culture de plantes, chaque étage formant un espace tubulaire s'étendant dans le sens longitudinal ； et une paire de surfaces latérales fermées (27) s'étendant dans le sens longitudinal. Chaque étage (23) comporte une entrée d'air (22) correspondant à une ouverture à une extrémité de l'espace tubulaire, et une sortie d'air (21) correspondant à une
