the invention aims at providing an oxygen - absorbing resin which has excellent oxygen absorption performance and which can dispense with the addition of a transition metal catalyst or the irradiation with a radiation . the invention provides an oxygen - absorbing resin which is obtained by polymerizing a raw material containing a monomer having an unsaturated alicyclic structure bearing a carbon - carbon double bond wherein one carbon atom adjacent to the carbon - carbon double bond is bonded to an electron - donating substituent and a hydrogen atom and another carbon atom adjacent to the carbon atom is bonded to a heteroatom - containing functional group or a bonding group derived from the functional group with the electron - donating substituent and the functional or bonding group taking cis - configuration and which contains the unsaturated alicyclic structure in an amount of 0 . 5 to 10 meq / g ; oxygen - absorbing resin compositions containing the above oxygen - absorbing resin ; and oxygen - absorbing containers , characterized by having an oxygen - absorbing layer made from the resin or the compositions .