To provide an active energy ray curing type composition having high sensitivity even in a long wavelength region, good preservation stability of the composition and excellent adhesiveness of a cured product to a substrate, to provide an active energy ray curing type ink having high image quality and good preservation stability, excellent curability and high adhesiveness to the substrate hardly susceptible to environmental effects and to provide a method for curing the composition and the ink.

The active energy ray curing type composition, the active energy ray curing type ink and the method for curing the composition and the ink are characterized by comprising at least one compound represented by general formula (1) and at least one cationically polymerizable compound.