The utility model relates to a particle truing device of powder type materiel, belonging to technology field of super fine powder type material deep processing treatment equipment, and comprises a stator, a rotor, a cover gasket, an sealing ring, a jacket, a cooling water inlet branch, a cooling water outlet branch, laminas, laminas, a feed inlet and a discharge gate. The laminas are distributed on the rotor symmetrically along the circumference and the laminas are distributed on the cover gasket symmetrically along the circumference. The laminas on the cover gasket and the laminas on the cover gasket crisscross are distributed and separated with each other. A high elastic rubber-sealing ring is arranged between the cover gasket and a stator (1). The cover gasket opens a side only. Feeding and discharging are adopted the gap type. The utility model can achieve particle truing treatment in a short time, moreover the part contacted with the powder type materiel in the core adopts stainless steel or silicon nitride ceramics, therefore can effectively avoid the pollution during treating the powder type materiel.