An apparatus for cultivating plants according to an embodiment of the present invention includes: a cabinet having a cultivation space； a door opening/closing the cultivation space； a bed that is disposed in the cultivation space and on which plants are cultivated； a light assembly radiating light for photosynthesis toward the bed； a water tank storing water to be supplied to the bed； a machine compartment separated from the cultivation space at a lower portion in the cabinet, communicating with an outside, and accommodating a compressor and a condenser constituting a cooling cycle for controlling the temperature of the cultivation space； an air duct connecting the machine compartment and the cultivation space and guiding air in the machine compartment to the cultivation space； and a return duct connecting the cultivation space and the machine compartment and guiding air in the cultivation space to the machine compartment.
