According to the invention, a hydroponic system for fruit vegetables, which is a highly labor-saving system, and by which productivity can be improved and high profits can be achieved, is established. The present invention provides: a cultivation bed, which includes: a cultivation bed body (1) having an incline in the longitudinal direction thereof; a water-retaining sheet (2) that covers the inner surface of the cultivation bed; a water-permeable root barrier sheet (3) that is laid over the water-retaining sheet (2); a holding portion (4) for holding a seedling (11) of a fruit vegetable; and a drainage groove (5), a hydroponic system including the cultivation bed, and a method for culturing a fruit vegetable using the same.