Objective: Improve the hulling efficiency of the rice huller. Methods: Simulated the process of rice hulling, and analyzed the influence of various parameters on the hulling process by changing the movement speed of the rubber roller and the line speed difference. Firstly, the model of huller and the model of single-sided shelled brown rice were established in SolidWorks, and then the established model was imported into ADAMS for simulation, and the effects of the corresponding factors on the hulling efficiency of huller were observed by changing the rotational speeds of the fast and slow rollers, the difference in line speeds between the fast and slow rollers, and the friction coefficients between the rubber rollers and the hulls. Results: The faster of the speed of the fast and slow rollers was, the less time was needed to dehull the rice. The larger the difference between the linear speed of the fast and slow rollers was, the less time was needed to dehull the rice, but the change was very small. the larger the coefficient of friction between the rubber rollers and the hulls was, the less time was needed to dehull the rice, but the change was small comparing with that brought about by the change in the speed of the fast and slow rollers. Conclusion: For the diameter of 225 mm, rubber thickness of 25 mm, rubber roller rolling distance of 0.8 mm rubber roller huller, shelling efficiency was at the highest speed of the fast and slow roller speed of 16.5 m/s, 13.4 m/s, the friction coefficient between the rubber rollers and hulls for 0.75.