To obtain a curing composition excellent in compatibility, adhesiveness to a base material and transparency of the resin and having a low refractive index and so forth and suitable as a material and the like for light reflection- protecting films.

This curing composition contains a fluorine-containing polymer containing a structural unit expressed by general formula (1) [R expresses H, F, an alkyl, a fluoroalkyl, an ally, an aryl, a furyl or a thienly; Rf expresses a monovalent fluorine-containing group; m is 1-10 integer.], a fluorine-containing multivalent acrylate expressed by general formula (2) [p expresses 1-6 integer; A expresses a 1-10C hydrocarbon group; b expresses H or an alkyl.].