Аннотация:The actuality of the use of the Ce and La in manufacturing of Nd-Fe-B-based permanent magnets is substantiated. The aim of the present study is to investigate the distribution of main components in the structure36of sintered permanent magnet. The structure and domain structure of the Nd-Pr-Ce-Tb-Fe-Co-Al-Cu-Ti-B sintered permanent magnet was studied by atomic-force and magnetic-force microscopy. The possibility ofintroduction Tb, Cu, and Co components at the stage of fine milling of hydrogenated powders is demonstrated by electron microscopy data.