The utility model provides a stevia seed separator, including the support, the top of support is equipped with the revolving sleeve, the revolving sleeve comprises horizontal segment and tilt up's slope section, the outer tip of horizontal segment forms the air intake, and air intake department is equipped with the fan, the outer tip of slope section forms the discharge gate, the middle part of horizontal segment is provided with the feed inlet, which comprises a bracket, the utility model discloses simple structure, easily operation to can satisfy cleaning of different particle grade seed through adjusting the wind -force size, and cleaning efficiency is high and effectual, has effectively solved the problem that stevia seed is difficult for cleaning, and the effect is planted to the sweetleaf chrysanthemum and commercialized processing provides the good basis in order to improve.