PROBLEM TO BE SOLVED: To provide plant cultivation apparatuses which can improve uniformity of air to be supplied to a plurality of stages of cultivation shelves.SOLUTION: A plant cultivation apparatus (10) comprises cultivation shelves (2A-2H), air passages, ducts (3A-3D), and air supply devices (4A, 4B). The cultivation shelves (2A-2H) include a plurality of stages (21), air inflow ports (25), and air outflow ports(26). The air inflow ports (25) and the air outflow ports (26) are provided on both sides of the cultivation shelves (2A-2H) in the long direction. The air passages are provided between the air outflow ports (26) and air inflow ports (25). The ducts (3A-3D) are arranged in the air passages. The ducts (3A-3D) extend in the vertical direction. The ducts (3A-3D) release air toward the air inflow ports (25) from side surfaces. The air supply devices (4A, 4B) suck air from the air outflow ports (26) and supply it to the ducts (3A-3D).SELECTED DRAWING: Figure 1