The utility model relates to a novel mud sampler which comprises a connecting rod, a supporting plate and a mud sampling cylinder, the supporting plate is umbrella-shaped, the connecting rod is connected with the supporting plate and is positioned in the center of the inner side of the supporting plate, and the mud sampling cylinder is fixedly connected to the umbrella surface of the supporting plate. The mud sampler is simple and reasonable in structure and convenient to use, and is used for collecting mud samples; the novel mud sampler can greatly increase the sampling depth, is high in sampling accuracy, is suitable for large-batch mud sample collection, is low in manufacturing cost, is convenient to carry and transfer, and is easy to popularize.