NdFeB permanent magnet fabrication method, Nd 25 ~ 30wt%, Dy 0.5 ~ 6wt %, Tb 0.2 ~ 2wt%, Cu 0.1 ~ 0.5wt%, including B 0.8 ~ 2wt%, and the balance Fe and other As a method for producing a NdFeB permanent magnet consisting of unavoidable impurities, the NdFeB permanent magnet is provided in a separate composition comprising: milling a mother alloy consisting of the remaining ingredients, except the composition of Tb powder; Comprising: forming a molded article by milling the parent alloy; Tb powder and the molded article was charged in the sintering vessel in a state where the receiving container with the composition and the sintering step of the sintering in a vacuum atmosphere to the inside of the Tb powder does not evaporate; The interior of a sintering furnace and joseonghan nopeumyeonseo than the inside of the vacuum atmosphere in the sintering step of sintering in a vacuum atmosphere of degree of vacuum evaporation in which the Tb powder and then heat-treated at a temperature lower than the temperature of the step of sintering the formed body and the Tb powder The Tb Tb from a powder by evaporation of the heat-treating step of deposition and diffusion in the formed article; is introduced NdFeB permanent magnet is produced by the NdFeB permanent magnet and the manufacturing method comprising the ;
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