To provide a fine particle which uniformly carries a material having a catalytic function on the surface.

A method for manufacturing the fine particle comprises: rotating a vacuum vessel 1 having the polygonal shape of an inner cross section, around a rotation axis approximately vertical to the cross section; and while thereby stirring or rotating the fine particles 3 in the vacuum vessel 1, coating the surface of the fine particles 3 with superfine particles having smaller diameters than the fine particles have or a thin film, through a sputtering technique. The superfine particle or the thin film is made of at least one of a metallic catalyst, an oxide catalyst and a composite catalyst.