To provide a non-aqueous photopolymerizable composition, which contains: a (meth)acrylic acid ester compound containing at least diethylene glycol dimethacrylate; a photoradical polymerization initiator, which is at least one selected from the group consisting of 1- hydroxy- cyclohexyl- phenyl- ketone, 2- hydroxy- 2- methyl- 1- phenyl- propan- 1- one, and 2- hydroxy- 1- {4- [4- (2- hydroxy- 2- methyl- propionyl)benzyl]phenyl}- 2- methyl- 1- propan- 1- one; and a triazine compound, wherein an amount of the photoradical polymerization initiator is 10 parts by mass or greater relative to 100 parts by mass of the (meth)acrylic acid ester compound.