Chili rhizosphere secretion collecting device and collecting method

The pepper rhizosphere secretion collecting device comprises a culture box with an opening in the upper end, the upper end of the culture box is of an inverted quadrangular frustum pyramid structure, four limiting frames arranged in a rectangular shape are arranged in the culture box, each limiting frame is composed of two vertical rods and a plurality of transverse rods, and the vertical rods are arranged in the culture box. The transverse rods are fixedly connected between the two corresponding vertical rods, and push rods are fixedly connected to the sides, close to the adjacent inner walls of the culture box, of the vertical rods; a pepper rhizosphere secretion collecting method comprises the following steps that S1, cultivation soil is poured into a culture box, when the cultivation soil is poured to a half height, pepper seeds are put into the culture box, a collecting barrel is pushed upwards, a collecting hopper is made to be close to the positions of the pepper seeds, and then the cultivation soil is