Plant root system dynamic in-situ observation device

The invention provides a plant root system dynamic in-situ observation device. The plant root system dynamic in-situ observation device comprises a base and a wall plate, wherein the wall plate is foldably arranged on the base, and particles are arranged on the inner side of the wall plate. Compared with the prior art, the wall plate of the device is connected with the base through a hinge, and then the wall plate is fastened by the fastening leather sheath so as to form a cavity. As the wall plate can be turned and folded, the original root system and the soil need not be treated, and when the plant root system is observed, only the fastening leather sheath needs to be taken down, and the wall plate is turned over to a certain angle; convex-concave particles are arranged on the inner sidesurface of the wall plate for containing the plant observation device, the root hairs will penetrate into the voids formed between the particles in the inner wall of the panels and grow in the same direction through the void