Cultivation device for collecting root exudates of submerged plants

The utility model discloses a cultivation device for collecting root exudates of submerged plants. The device comprises a liquid inlet and outlet guide pipe, an exhaust guide pipe, a container sealingcover, a rhizome fixture, a shading sleeve plate and a root system nutrient solution container, the container sealing cover is arranged on the root system nutrient solution container; a root system through hole is formed in the container sealing cover; root systems of the submerged plants penetrate through the root system through holes; the rhizome fixture is filled between the joint of the rhizomes of the submerged plants and the container sealing cover to fix the submerged plants; the liquid inlet and outlet guide pipe penetrates through the container sealing cover and extends to the bottomof the root system nutrient solution containing container, the exhaust guide pipe penetrates through the container sealing cover and extends into the root system nutrient solution containing container, the root system nutrien