Disposable excrement specimen homogeneous sampling tube

The utility model relates to the technical field of excrement, and discloses a disposable excrement specimen homogeneous sampling tube, which comprises a tube body, a placing cylinder and a first sealing cover, the upper surface of the tube body is in threaded connection with a second sealing cover, the upper surface of the second sealing cover is provided with an annular groove, and the interior of the annular groove is in sliding connection with a first sealing ring; according to the excrement sampling device, the air bag pipe is arranged and matched with the suction pipe, so that liquid excrement is sucked into the suction pipe, the aim of well sampling some sparse excrement can be achieved, and the situation that when the excrement is sampled originally, when some sparse excrement is sampled by a digging spoon, the sampling time is shortened, and the sampling time is shortened is avoided. The problems that in the prior art, the sampling effect is poor, and use cannot be carried out are solved, by arrangin