In order to improve the efficiency of rind-pith separation for corn stalks, a kind of roller-teeth husking roller was designed. It firstly achieved elastic-plastic deformation of rind and pith in the feeding and compaction process, meanwhile, the shearing device cut corn stalks into segments to realize rind and pith separation. Based on this principle, a roller-teeth husking roller device was designed by applying the solid isotropic microstructures with penalization （SIMP）method, and a finite element simulation analysis was made on the husking roller, and the following data for the husking roller were obtained as follows: radius of husking roller was 33mm, height of toothed blade was 2mm, toothed blade thickness was 2mm and blade angle was 30°. To find out the optimal parameter combination, a quadratic regression rotation-orthogonal combination design test was made by taking rind and pith separation rate as the test index, and rotating speed of the husking roller, toothed blade clearance, cutting length of stalk segments as test factors. After test data treatment and analysis with the software Design-Expert, a mathematical model on test index and factors was set up. After parameter optimization, the optimal parameter combination for the rind and pith separation husking roller device was obtained: the rotating speed of the roller was 295r/min, roller-teeth clearance was 5mm, length of stalk segments was 22mm, and the separation rate was 85%. The test proved that the results could basically meet the working requirements, which were in line with the analysis results. Conclusions can be drawn that the roller-teeth husking roller had good adaptability. Reference for the design of the roller-teeth husking roller can be provided.