To obtain a powder coating that simplifies a process related to coating and sufficiently exhibits photocatalytic performance while preventing decomposition of a synthetic resin to become a main component of a coating film layer by a photocatalytic activity, a coating film layer, to provide a coating method and to obtain a coated article.

The photocatalytic powder 1 comprises a photocatalytic crystal 11 coated with a protective substance 12 more inert to a photocatalyst. Consequently a coating film matrix 2 to become the main component of the coating film is protected by the protective substance 12 and is prevented from being decomposed. A part of the surface of the photocatalytic crystal 11 is coated with the protective substance 12 and other parts are not coated so that photocatalytic performance is developed on the surface of the photocatalytic crystal 11 and photocatalytic performance is sufficiently exhibited.

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