Excrement collecting device

The invention provides an excrement collection device, and relates to the technical field of excrement collection devices, the excrement collection device comprises a sampling tube and a sampling part; a sampling part is mounted in the sampling pipe, and a sampling opening is formed in one end below the sampling pipe; the sampling part is composed of a piston rod, a piston, a short rod, a threaded pipe, a locking screw rod, a groove, a stop lever, a rubber sleeve and a limiting screw rod. A short rod is welded at the lower end of the piston rod, the sampling tube is hollow, the upper port of the sampling tube is aligned with the short rod, the lower end of the short rod is smooth, and when the piston moves to the bottommost part, the short rod can penetrate through the sampling port to realize unblocking of the sampling port, so that the practicability is high, the contact degree of excrement and air during sampling can be reduced, and cross contamination of microorganisms in the air is avoided; the sampling