NOVELTY - A rare-earth permanent magnet is in the form of a sintered magnet component having an alloy composition containing oxide of element chosen from rare earth elements, scandium and yttrium, element chosen from alkaline-earth metal and rare-earth element, iron and/or cobalt, boron and/or carbon, fluorine, and aluminum, copper, zinc, indium, silicon, phosphorus, sulfur, titanium, vanadium, chromium, manganese, nickel, gallium, germanium, zirconium, niobium, molybdenum, palladium, silver, cadmium, tin, antimony, hafnium, tantalum, and tungsten.    USE - Rare-earth permanent magnet. Uses include but are not limited to industrial equipment, electric automobile and wind power generator.    ADVANTAGE - The rare-earth permanent magnet has reduced eddy current loss and high electric resistance.    DETAILED DESCRIPTION - A rare-earth permanent magnet is in the form of a sintered magnet component having an alloy composition having compositional formula: RaEbTcAdFeOfMg (I) or (R.E)a+bTcAdFeOfMg (II). The magnet component has a center and a surface obtainable by causing E and fluorine atoms to be absorbed in a R-Fe-B sintered magnet component from its surface. The rare-earth permanent magnet is obtained by absorption of fluoride of neodymium, praseodymium, dysprosium or alkaline-earth metal through the surface of a sintered magnet component prepared from a mother alloy containing neodymium and dysprosium, or by absorption of fluoride of praseodymium from the surface of a sintered magnet component prepared from a mother alloy containing neodymium. The constituent element (F) is distributed such that its concentration increases on average from the center toward the surface of the magnet component, grain boundaries surrounding primary phase grains of (R,E)2T14A tetragonal system within the sintered magnet component, the concentration (E/(R+E)) contained in the grain boundaries is on average higher than concentration (E/(R+E)) contained in the primary phase grains. The oxyfluoride of (R,E) is contained at grain boundaries in a grain boundary region that extends from the magnet component surface to a depth of at least 20 mu m, and particles of oxyfluoride having an equivalent circle diameter of 1 mu m or more are distributed in grain boundary region at a population of 2000 particles/mm2 or more. The oxyfluoride is contained in an area fraction of at least 1%, and magnet component includes a surface layer having a higher electric resistance than the magnet component interior.    R=rare earth element, scandium and/or yttrium;    E=alkaline-earth metal and/or rare-earth element, R and E comprise one or more same element;    T=iron and/or cobalt;    A=boron and/or carbon;    F=fluorine atom;    M=aluminum, copper, zinc, indium, silicon, phosphorus, sulfur, titanium, vanadium, chromium, manganese, nickel, gallium, germanium, zirconium, niobium, molybdenum, palladium, silver, cadmium, tin, antimony, hafnium, tantalum and/or tungsten;    a=10-15;    b=0.005-2;    a+b=10.005-17;    d=3-15;    e=0.01-4;    f=0.04-4;    g=0.01-11;and    c=remaining amount.    The sintered magnet component has alloy composition (I), when R and E do not contain same element(s). The sintered magnet component has alloy composition (II) when R and E contain same element(s). An INDEPENDENT CLAIM is included for method of preparing rare-earth permanent magnet.