Abstract: Anisotropic Sm₂ Fe₁₇ N_x permanent magnetic powders were pre pared by powder metallurgy technique.Effects of processing conditionson the microstructure of Sm₂ Fe₁₇ alloy as well as the mag-netic properties of Sm₂ Fe₁₇ N_x magnetic powders were studied.Magn etic properties,microstructure and constituents of the alloy and pow ders were investigated by using X-ray diffraction,scanning electron microscope and vibrating s ample magnetometer.It is found that the magnetic performance of the powders mainly dependson the process of homogenization,nitrogenation and pulverization which are the key fabricating technologies for preparing the magnetic powders.Adopting optimal processing conditions, the powders with magnetic properties of 4πM_r =1.24T,iHc =756kA/m and（BH）_max =220kJ/m³ are prepared.