Radial Ndfeb ring magnets is developed successfully based on the study of Sintered NdFeB rare earth permanent magnets in many years , and meets different requirements of permanent magnet servo motor, it is using the shaping method by new multipole radiation orientation, on the hypoxic conditions, it is through the research the compositions of NdFeB materials adapt raidal ring, as well as the phase structure, orientation forming, sintering and heat treatment process and the study of magnetizing method.