PLANT CULTIVATION DEVICE A plant cultivation device has a rack, an air blower pipe, a lighting unit, 5 and a gas supplier. The rack has shelves for arranging a plurality of plants. The lighting unit emits artificial light to the plurality of plants from above. The air blower pipe has a plurality of ejection openings. The gas supplier ejects gas through the plurality of ejection openings by applying static pressure into the air blower pipe so as to eject the gas to the plurality of plants. 10 Figure 1