Soil cutting device

The embodiment of the invention provides a soil cutting device which comprises a box body, and a linear sectioning gap in the longitudinal direction is formed in the top of the box body; the soil sample clamping structure is fixed in the box body, the soil sample clamping structure is used for clamping a cylindrical soil sample which is transversely placed, and the soil sample clamping structure can drive a soil body to move in the box body in the transverse direction; the blade is connected to the bottom of the control rod; wherein one end of the control rod is rotationally connected with the top of the box body, so that the control rod rotates to drive the blade to enter the box body from the sectioning gap to sectioning the soil body. According to the embodiment of the invention, the technical problems that soil is easy to splash and the sectioning position needs to be manually controlled in the repeated cutting process of a soil body are solved. 本申请实施例提供了一种切土装置，包括：箱体，所述箱体的顶部具有沿纵向方向的直线型的剖切缝隙；土样夹持结构，固定在所述箱体