PURPOSE: To provide the titled fine powder composed of regenerated protein fine powder containing an oily material dispersed and occluded therein as minute liquid droplets, containing an oily material having high functionality at a high rate, having excellent adhesivity, spreadability, masking power, dispersibility, etc., and useful for cosmetic, food, paint, etc.

CONSTITUTION: An aqueous solution of a regenerated protein (e.g. silk fibroin, casein, collagen, etc.) having a concentration of 2W20(wt)%, especially 5W10% is mixed with an oily material or an oily material and an extender pigment and the resultant emulsified suspension liquid is subjected to isoelectric point coagulation, mixing with protein coagulant or agitation at high rate of shear strain (≥50sec-1, especially ≥100sec-1) or their combination. The regenerated protein coagulated and precipitated by this procedure is washed with water, dried and pulverized to obtain the objective regenerated protein fine powder (preferably having maximum particle diameter of 3W30μ) containing an oily material and optionally an extender pigment dispersed and included in the powder as minute liquid droplets. The amount of the oily material included in the powder is 0.5W50%, preferably 1W20% of the powder and ≤25 times, especially ≤10 times weight of the regenerated protein.