Abstract: Aiming at the problems of clogging and low seedbed cleaning rate of rapeseed no-tillage planters in Jiangsu area, a toothed tray-type straw shifting device was redesigned. The important influencing factors of straw shifting were determined through kinematics analysis, and discrete element simulation was used. The software performs a simulation test to obtain the best parameter combination when the straw shifting device is working and performs a bench test to verify the accuracy of the simulation test. The simulation test results showed that the straw removal rate was positively correlated with the displacement deflection angle and the forward speed. When the forward speed was constant, the greater the displacement deflection angle, the better the straw removal effect of the device. When the displacement deflection angle was constant, the higher the forward speed, the better was the straw removal effect of the device. When the forward speed was 0.6 m/s, and the displacement angle was 30°, and the straw removal rate reached the maximum value of 64.70%. The bench verification test showed that the straw removal effect was better when the forward speed of the machine was 0.6 m/s, and the displacement angle of the gear plate was 30°. At this time, the straw removal rate was 60.69%. The test results showed that the design of the toothed tray-straw shifting device met the requirements of rape seeding.