Underground soil image acquisition device

The utility model discloses an underground soil image acquisition device, relates to the technical field of image acquisition, and solves the problem that an existing image acquisition device is difficult to acquire cross-sectional images of soil under the ground. The image acquisition device comprises a soil contact mechanism which is at least provided with a transparent window buried in soil, and the transparent window forms a soil surface by blocking the soil; an image acquisition mechanism; and the illumination part is arranged on the soil contact mechanism or the image acquisition mechanism and is used for illuminating the soil surface, so that the image acquisition mechanism can perform image acquisition on the illuminated soil surface. The illumination component can penetrate through the transparent window to illuminate the soil surface, and the image acquisition mechanism can penetrate through the transparent window to shoot the illuminated soil surface so as to realize image acquisition of the soil s