The utility model relates to a novel mud sampling device which comprises a mud sample storage part and a mud feeding part, the mud sample storage part is a hollow cylinder with openings at two ends, one end of the mud sample storage part is arc-shaped, the mud feeding part is a hollow cylinder with openings at two ends, one end of the mud feeding part is arc-shaped, the other end of the mud feeding part is provided with an oblique incision, and the mud sample storage part is connected with the arc-shaped end. The novel mud sampling device is simple and reasonable in structure and convenient touse, is used for sampling mud samples, and is high in sampling accuracy, the mud sampling pipe is convenient to take down from the mud sampler, and the mud sampling speed is high.