The present invention relates to a multi-stage floating oxygen-supplying plant factory machine, and more specifically, a frame frame composed of a plurality of layer structures, and each layer of the frame frame is installed in the longitudinal direction of the frame frame, and the nutrient solution is inside. The stored cultivation tank, the floating body floating on the surface of the nutrient solution stored in the cultivation tank while the plant is planted, and the floating body so that the floating bodies have opposite directions to each other, one end or the other end of the cultivation tank. A moving means for moving in one direction toward, a lifting means disposed on the outside of the cultivation tank to raise or lower the floating body to the upper layer, and a light source for irradiating light to plants moving in the cultivation tank and light sources for raising and lowering the light source It relates to a multi-stage floating oxygen supply plant factory machine comprising a control means. According to the present invention, for the cultivation of the transport of plants, the structure of the transport means consisting of a combination of existing complex mechanical devices is simplified to the water surface floating transport method using a water tank in which nutrient solution is stored, and the plants for supplying oxygen to the roots of the plants By raising the planted floating body in the cultivation tank and installing up-and-down means of transportation for inhaling oxygen from the atmosphere, the entire facility of the plant factory machine is simple, and the space efficiency of supplying oxygen to the root is not only high, but also manufacturing, Costs for installation and maintenance can be reduced.본 발명은, 다단식 플로우팅 산소공급 식물공장 기계에 관한 것으로서, 보다 상세하게는, 다수의 층 구조로 이루어진 프레임 틀과, 프레임 틀의 각 층별로 프레임 틀의 길이방향으로 설치되며, 양액이 내부에 저류된 재배 수조와, 식물이 식재된 상태로 재배 수조에 저류된 양액의 수면 위에 부유되는 부유체와, 부유체를 각 층별로 서로 방향이 반대가 되도록 부유체를 재배 수조의 일측 끝단 또는 타측 끝단을 향해 일방향 이동시키는 이동수단과, 재
