Big seedling water culture device based on agricultural system

The invention discloses a big seedling water culture device based on an agricultural system, and relates to the technical field of water culture devices. The big seedling water culture device comprises a main water supply pipe, wherein a plurality of cultivator main bodies are installed at the top of the main water supply pipe at equal intervals, installation mechanisms are arranged at the bottoms of the cultivator main bodies, the cultivator main bodies are detachably connected with the main water supply pipe through the installation mechanisms, each cultivator main body comprises a water planting tank and a cultivation grid installed in the water planting tank, and a water locking layer is arranged at the bottom of the cultivation grid. The vegetable big seedling cultivation device is provided with the independent cultivator main bodies, gaps between the single cultivator main bodies are orderly, the growth space and nutrient absorption of big seedlings are greatly guaranteed, moreover, the occupied space r