To provide an active light-curing type composition which does not generate an unpleasant odor, improves the scratch resistance, bending resistance, infiltration and storage thickening of images, to provide an active light-curing type ink jet ink using the same, to provide a method for forming an image, and to provide an ink jet recorder.

This active light-curing type composition comprising a photopolymerizable compound and a photopolymerization initiator is characterized by containing at least one of a deodorant, a perfume and an antioxidant.