Hydroponic cultivation device

The invention relates to a hydroponic cultivation device which comprises a support and a plurality of planting tubes arranged on the support. A plurality of planting holes are formed in the planting tubes. The two ends of each planting tube are respectively communicated with adjacent planting tubes through communication tubes. The topmost planting tube is connected with a liquid inlet tube. The planting tube at the bottommost end is connected with a liquid outlet tube. An oxygen aeration device is arranged at an inlet of the liquid inlet tube. The whole structure of the hydroponic cultivation device saves space, can ensure illumination of all plants, is good in planting effect, can ensure sufficient nutrition liquid for plant root systems and avoid nutrition liquid from being wasted at the same time by the adoption of the tubular planting tubes, brings convenience to flushing the planting tubes, can control the irrigation of the nutrition liquid in a timing and quantitative mode through a water pump, replaces