To achieve local melting of an inorganic material powder containing an inorganic material as a main component in an additive manufacturing technology, to thereby achieve high shaping accuracy. Provided is an inorganic material powder to be used in an additive manufacturing method involving performing shaping through irradiation with laser light, the inorganic material powder including: a base material that is an inorganic material; and an absorber, wherein the absorber has a higher light-absorbing ability than the base material for light having a wavelength included in the laser light, and contains any one of Ti.sub.2O.sub.3, TiO, SiO, ZnO, antimony-doped tin oxide (ATO), and indium-doped tin oxide (ITO), or contains any one of a transition metal carbide, a transition metal nitride, Si.sub.3N.sub.4, AlN, a boride, and a silicide.

(i) a step of disposing a powder that includes an absorber absorbing light of a wavelength included in a laser beam to be irradiated and silicon dioxide as a main component; (ii) a step of sintering or melting and solidifying the powder by irradiating the powder with a laser beam; and (iii) a step of heat-treating a shaped object formed by repeating the steps (i) and (ii) at 1470 C. or more and less than 1730 C.