A pattern forming body is provided or a color filter, wherein the color filter can be manufactured efficiently by a simple process without any cracks and no influence to an alignment of a liquid crystal. A pattern forming body is provided comprising: a base material; a photocatalyst containing layer, comprising at least a photocatalyst, formed on the base material; a protecting part formed on the photocatalyst containing layer; a property variable layer, whose surface property is varied by a function of a photocatalyst due to an energy irradiation, formed so as to cover the photocatalyst containing layer and the protecting part; and a property-varied pattern which is a property varied property variable layer.