In order to provide an efficient hydroponic cultivation system, the disclosure provides a hydroponic cultivation system comprising a plurality of vessels extending in a predetermined direction; a plant holding plate that holds a plant and is disposed to span across the plurality of vessels; and a support mechanism provided between vessels adjacent to each other among the plurality of vessels, wherein each of the plurality of vessels is configured to contain a culture solution required for the growth of the plant, and the support mechanism supports the plant holding plate above the plurality of vessels.