A plant cultivation apparatus comprising a cultivation box which has a hollow rhizosphere portion for hanging a root of a cultivation plant, wherein: the cultivation box is constructed by detachably combining an upper panel and a lower panel； a bottom wall of the lower panel is provided with a waste liquid port and a trough-shaped gutter is detachably installed below the bottom wall of the lower panel over an entire length in a length direction； the upper panel is provided with nozzle-mounting holes at intervals in the length direction； a nozzle for spraying nutrient solution is inserted into each of the nozzle-mounting holes and hung in the rhizosphere portion； the upper panel is provided with planting holes for the cultivation plant； and a root of the cultivation plant is inserted into the planting hole and hung in the rhizosphere portion, to which the nutrient solution is sprayed from the nozzle.
