PURPOSE: An oxygen bed for cultivating a nutrient solution is provided to supply a sufficient oxygen required to raise a plant. CONSTITUTION: An oxygen bed comprises:a floor plate containing plural vent apertures(11), draining apertures(12) at the both ends, and lateral continuing drain leading paths(13) arranged along the longitudinal direction with a certain span; U-shaped bed main body(10) containing a supporter(15) with plural ventilating aperture(14); and a water collecting plate(16) associated evenly in the lower unit of the electric bed main body for containing water collecting paths(16) continuing along the longitudinal direction in the middle of the width.
