Provided are a hydroponic method for a leaf vegetable, which can be conveniently carried out at home or the like, and a hydroponic unit, which correspond to a hydroponic method for a leaf vegetable, including: supplying nutrient solution to an uppermost stream of a leaf vegetable cultivation container having an inclination in a longitudinal direction causing the nutrient solution to flow out from a lowermost stream of the cultivation container to circulate the nutrient solution, the cultivation container having: a plurality of planting holes formed in an upper surface thereof and a concavo-convex groove formed at a bottom surface thereof in parallel to the longitudinal direction inserting the leaf vegetable through corresponding one of the plurality of planting holes to house the leaf vegetable inside the cultivation container and carrying out cultivation while bringing a root of the leaf vegetable into contact with the nutrient solution, and a hydroponic unit.
