The invention provides a crusher flow field observation stand and belongs to the field of crushing of tobacco stems. The crusher flow field observation stand is characterized in that the stand comprises a crusher support; a sliding groove is formed in the outer side of the crusher support in the circumferential direction of the crusher support; a vertically-arranged supporting rod is arranged in the sliding groove in a sliding mode, the supporting rod is of a hollow structure which is provided with an inner thread, and the upper end of the hollow structure is opened; a threaded rod is rotationally arranged at the upper end of the supporting rod; and a camera is fixedly arranged on the threaded rod through a camera support. The crusher flow field observation stand is used for solving the problem that material crushing and flow field distribution in inner cavities of existing crushers and filament rubbing machines are difficult to observe.