Abstract: In order to optimize the parameters of shelled rape seed separator, and improve its sorting performance, separating experiments of shelled rapeseed were conducted using self-developed vibration and up-draft separator by quadratic orthogonal rotary experiment with three－factor and five－level. The influences of wind speed of front wind tunnel, wind speed of behind wind tunnel and feeding volume on the rate of kernel included in shell and the rate of shell included in kernel were investigated. The results showed that the sequences of factors, which influencing the rate of kernel included in shell and the rate of shell included in kernel, were wind speed of the front wind tunnel, the feeding volume and the wind speed of behind wind tunnel. Optimal parameters of shelled rapeseed separator were as abstained that feeding volume was 650–750 kg/h, wind speed of front wind tunnel was 1.5 m/s, wind speed of behind wind tunnel was 5.14 m/s. The research results can provide a reference for design and performance improvement of shelled rapeseed separator.