Soil sampling device for geological detection

The utility model relates to a soil sampling device for geological detection. The device comprises a box body, a first supporting plate and a second supporting plate are fixedly installed on the rightside of the bottom of an inner cavity of the box body, the first supporting plate is located on the front face of the second supporting plate, a steel wire reel is supported by a bearing on the backface of the first supporting plate, and a steel wire rope is wound around the surface of the steel wire reel; according to the utility model, the box body, the first support plate, the second supportplate, the steel wire reel, the steel wire rope, the rotating shaft, the first motor, the pulley, the connecting block, the motor box, the scale plate and the transparent glass are arranged; accordingto the soil sampling device, the advantage of accurate sampling is achieved, and meanwhile the problem that an existing soil sampling device for geological detection cannot accurately measure the depth of a soil layer, so that