Provided is a powder formulation for a dental composite which prevents aggregation, makes it easy to be obtained by a proper amount, and makes it possible to suppress formation of incineration residues after mixed with a liquid formulation for a dental composite to form resin. The powder formulation includes a flowability-improving agent in the form of powder, the flowability-improving agent being comprising polymethyl (meth)acrylate, the flowability-improving agent having a volume median particle diameter of 0.02 μm to 50 μm.
