The invention relates to the technical field of brewing auxiliary tools and discloses a brewing pit mud sampler and a brewing pit mud sampling drilling tool. The sampler comprises a fixed plate, wherein a motor is fixed to the center of the upper surface of the fixed plate through screws, the motor is electrically connected with an external power source, a sampling cylinder is fixed to the centerof the lower surface of the fixed plate in a welded mode, the sampling cylinder is of a hollow cuboid structure with a top opening and a bottom opening, and a spiral shaft is arranged inside the sampling cylinder. In the sampling process, the sampling cylinder can be placed on pit mud, the motor is started, the spiral shaft is driven to rotate through the motor, and therefore the sampling cylindercan move downwards slowly; after the sampling cylinder is located inside the pit mud, the sampling cylinder can be prevented from continuing to move downwards through a handle, then the pit mud can be taken out under the action of the spiral shaft and enter a collection bag through a conduit, and therefore the sampling work of the pit mud is completed. Compared with an existing pit mud sampling mode, the mode is simpler and more convenient.