An apparatus for cultivating plants comprising: 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; a supply 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, characterized in that the apparatus further comprises: a blower assembly for circulating air in the cultivation space, the blower assembly being disposed in the cultivation space; a condenser fan for forcibly blowing air for heat exchange of the condenser, the condenser fan being disposed in the machine compartment; an inlet of the supply duct being disposed in a discharge direction of the condenser fan; and an outlet of the supply duct being disposed to be open toward the blower assembly, wherein the supply duct is disposed closer to the blower assembly than the return duct. 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; a supply 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, characterized in that the apparatus further comprises: a blower assembly for circulating air in the cultivation space, the blower assembly being disposed in the cultivation space; a condenser fan for forcibly blowing air for heat exchange of the condenser, the condenser fan being disposed in the machine compartment; an inlet of the supply duct being disposed in a discharge direction of the condenser fan; and an outlet of the supply duct being disposed to be open toward the blower assembly, wherein the supply duct is disposed closer to the blower assembly than the return duct. a blower assembly for circulating air in the cultivation space, the blower assembly being disposed in the cultivation space; a condenser fan for forcibly blowing air for heat exchange of the condenser, the condenser fan being disposed in the machine compartment; an inlet of the supply duct being disposed in a discharge direction of the condenser fan; and an outlet of the supply duct being disposed to be open toward the blower assembly, wherein the supply duct is disposed closer to the blower assembly than the return duct.