A fabrication method of isotropic and anisotropic NdFeB type permanent magnets is disclosed. In the a fabrication method of isotropic and anisotropic NdFeB type permanent magnets, the isotropic and anisotropic NdFeB type permanent magnets can be easily manufactured by means of Joule's heat using a self resistance of a powder molded body by directly applying a DC (Direct Current) to the upper and lower punches and the powder molded body, without using external heating elements or high frequency coils and so on, during press molding of the permanent magnet powder using the punches, and it is simple in terms of structure during the fabrication thereof, so that the manufacturing cost is low.