PROBLEM TO BE SOLVED: To provide a surface-treated powder which is excellent in water and oil repellency, gives a smooth touch, and has a good adhesion, when applied to the skin to provide a process of producing the surface-treated powder in an inexpensive and easy operation and to provide a cosmetic mixed with the surface-treated powder.SOLUTION: The invention relates to a surface-treated powder in which the surface of a base material powder is treated with a perfluoropolyether compound having an amino group represented by a general formula (1) and to a cosmetic mixed with the surface-treated powder.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】本発明は、従来困難であった撥水性及び撥油性に優れ、さらに肌への塗布時の感触が滑らかで付着性も良好な表面処理粉体及びこの表面処理粉体を安価かつ簡単な操作で製造すること、並びにこの表面処理粉体を配合した化粧料を提供することを課題とする。【解決手段】一般式(1)で示される、アミノ基を有するパーフルオロポリエーテル化合物によって基材粉体の表面が処理されていることを特徴とする表面処理粉体、及びこの表面処理粉体を配合した化粧料。【選択図】なし