The differential equations of movement along the concave profile of the grate, consisting of three broken lines, are integrated on Maple 9.5 under initial conditions, using separate functions, and graphs of the dependence of movement and speed over time are presented. The graphs show the patterns of change in displacement and speed at different angles, friction coefficient of seeds along grate with a broken line of a concave profile.How to cite this paper: Sharipov, K., Akhmedxodjayev, K., Tojiboyev, M. and Sarimsakov, O. (2020) The Mathematical Model of Seed Movement on a Concave Profile Rib. Engineering, 12,[216][217][218][219][220][221][222][223][224][225][226][227]