The application belongs to the technical field of agricultural planting, and particularly relates to an ecological three-dimensional water planting device. The device comprises a support, the support comprises a base, a vertical rod is welded on the base, a plurality of cross braces are sleeved on the vertical rod,
pipe braces are bolted on the cross braces, water planting mechanisms are placed on the
pipe braces, the water planting mechanism comprises a water planting tank, a
pipe holder is installed on the inner wall of one side of the water planting tank, a
drip irrigation pipe is clamped on the pipe holder, a planting plate is covered on the top of the water planting tank, a plurality of planting holes are arranged on the planting plate, water planting cups are placed in the planting holes, an inlet pipe is connected to one end of the water planting tank through the
drip irrigation pipe, a liquid outlet is arranged on one end of the water planting tank, and a return pipe is connected to the liquid outlet. The device directly sprays
nutrient solution to the roots of plants by using the
drip irrigation pipe, has simple structure, low cost and strong applicability.