<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">The article elucidates the physical and mechanical properties of cotton seeds, regarded as one of the main products of the cotton industry, and reviews existing devices (RNS, SHA, and USM) used for cleaning and sorting seeds separated from fiber, which is detached from the seeds during the primary treatment of cotton. The advantages and disadvantages of these devices in the process of cleaning and sorting cotton seeds, as well as practical and theoretical research on their elimination, have also been reviewed. The implemented research has raised the issue of separating seeds containing fibers good for spinning from the seed flow, which is one of the pressing issues, according to the author, when cleaning and sorting cotton seeds. Moreover, based on the review findings, it was established that enabling a uniform placement of seed cleaning and sorting machines on a moving working surface and determining the forces acting on moving seeds on the surface facilitates the efficiency of the technological process.</span></span></p>