The invention relates to a spatial soilless culture device. The spatial soilless culture device comprises a bracket, a plurality of culture beds, water wheels, a motor, a
nutrient solution tank and a
backflow tank, wherein two water wheels are arranged and are arranged at two sides of the bracket through a cross shaft, the cross shaft is linked with the motor through a belt, each of the water wheels is formed by a hollow
pipe body, the periphery of each
water wheel is provided with a series of water inlet pipes of which the front ends are bent to be hooked, the water inlet pipes are communicated with the water wheels, the two ends of the culture beds are movably connected to the
pipe walls of the wheel bodies of the two water wheels through hollow connecting rods and are uniformly distributed on the water wheels, one end of each hollow connecting rod is communicated with the
pipe body of the corresponding
water wheel, the other end is communicated with the corresponding culture
bed through a connecting rod, the
nutrient solution tank is arranged below the water wheels, water holes are formed in the side edges of the culture beds, and the
backflow tank is correspondingly arranged below the water holes. According to the culture device provided by the invention, plants can be shined uniformly, the water is automatically supplied and drained, and the
nutrient solution is used cyclically, so that the
automation and high efficiency of stereo-cultivation are realized, and the aims of energy saving and
environmental protection are reached.