Provided is a novel oxetane-ring-containing (meth)acrylic ester compound which can give, through polymerization, a cured article being highly flexible or thermally stable. The oxetane-ring-containing (meth)acrylic ester compound is represented by formula (1) below, in which R
1
represents a hydrogen atom or an alkyl group; R
2
represents a hydrogen atom or a methyl group; and “A” represents either a linear alkylene group represented by following formula (a1) or a branched-chain alkylene group represented by following formula (a2).