The invention relates to the technical field of agriculture, and discloses an intelligent agricultural soilless culture device. The intelligent agricultural soilless culture device comprises a supporting shelf, supporting devices, a storage box and illumination devices; a groove is formed in the left end of the supporting shelf, the supporting devices are arranged at the lower end of the supporting shelf and comprise support legs, grooves, first electric push rods, supporting shelf bodies, rotary shafts and idler wheels, the supporting legs are fixed to the lower portion of the supporting shelf, and the grooves are formed in the supporting legs. According to the intelligent agricultural soilless culture device, through the arrangement of culture boxes, first clamping grooves, nutritional solutions, second clamping grooves, the illumination devices, second electric push rods, lamp holders, illumination lamps, infrared detectors and receivers, the illumination height can be intelligentlyadjusted, when a plant grows taller, the infrared detectors can sense the growth, and transmit signals to the receivers, then the second electric push rods lift, the illumination height can be automatically adjusted according to the height of the cultured plant, and thus the growth of the plant cannot be influenced.