[Object] To provide a hydroponic cultivation system that is capable of transporting a seedbed with a simple mechanism and has excellent durability. [Solving Means] A hydroponic cultivation system includes a plurality of seedbeds, a hanging part, and a transport mechanism. A plurality of seedlings of a plant to be cultivated are transplanted to side surfaces of the plurality of seedbeds. The hanging part hangs each of the plurality of seedbeds while the plurality of seedbeds are arranged in a predetermined horizontal direction from a planting side of the seedlings to a harvesting side of the seedlings. The transport mechanism transports the plurality of seedbeds in the predetermined horizontal direction while widening spaces between the seedbeds in the predetermined horizontal direction in a stepwise or continuous manner.
