The problem to be solved is to provide a dental gypsum powder capable of suppressing mixing of bubbles in a kneaded object while including a resin component. A dental gypsum powder includes 0.5 to 4 wt.% of a solid component included in acrylic polymer dispersion； and 0.001 to 0.2 wt.% of cyclic siloxane including 3 to 10 SiO(CH3)2 units. More preferably, it includes 1 to 3 wt.% of the solid component included in the acrylic polymer dispersion.
