Full-sealed plant nutrient aeroponic cultivation device and plant aeroponic cultivation method thereof

The invention discloses a full-sealed plant nutrient aeroponic cultivation device and a plant aeroponic cultivation method thereof. The problems are solved that for an existing plant nutrient aeroponic cultivation device, plant nutrients are not comprehensive, the diseases and pests are easily spread, air in an aeroponic cultivation box is not recycled, and accordingly waste is caused. The devicecomprises the aeroponic cultivation box, a cultivation plate divides the aeroponic cultivation box into a photosynthetic aeroponic cultivation box body and a rhizosphere aeroponic cultivation box bodywhich provide required different nutrient fogs for stem leaves and rhizospheres respectively, and the stem leaves and rhizospheres are collected separately and recycled. According to the device, a single-direction circulation mode and a complete internal-circulation mode which can be freely switched are set, through the single-direction circulation mode, entrance of purification air and utilization of the stem leaves to c