Soil sample collecting device

The utility model provides a soil sample collecting device, which relates to the technical field of soil sampling and comprises a collecting barrel, a supporting plate and a driving transmission mechanism. A vertical partition plate is arranged in the collecting barrel and divides the inner space of the collecting barrel into a first space and a second space, a gap is formed between the bottom endof the vertical partition plate and the barrel bottom wall at intervals, a collecting opening is formed in the position, corresponding to the first space, of the barrel bottom wall, and the edge of the collecting opening is in a blade shape or a sawtooth shape with the downward tip end. The supporting plate is horizontally arranged in the first space or the second space, and the driving transmission mechanism is mounted on the barrel top wall or the barrel side wall and is configured to drive the supporting plate to translate or rotate in the horizontal plane so as to enable the supporting plate to enter the first sp