PURPOSE: To enhance the accuracy of the final die by transferring the reference axis set in an inversion model between stages with good accuracy and resetting the three-dimensionally deformed initial reference axis.

CONSTITUTION: This method for obtaining the die 12 consists in charging the inversion model 5 having the transfer surface having the shape resembling the shape of a product into a molding flask 1, injecting and pressurizing a slurry prepd. by adding and mixing an org. binder and water or org. solvent to and with metallic powder for sintering into this molding flask 1, discharging the liquid-component in the slurry 8 to form green body 8A solidified via the org. binder by contact of the powder particles with each other and sintering and impregnating this green body 8A. A reference member 11 is mounted to the above-mentioned inversion model 5 and is embedded into the green body 8A. The reference axis is reset on the bases of this reference member 11 after molding of the above-mentioned die 12 and the fitting surface of the insert part of the die 12 is machined on the bases of the above-mentioned reference axis and is fitted into the fitting recessed part of the die base.