Oxygen-absorbing multilayer sheet, packaging material made of same and packaging container

Disclosed is an oxygen-absorbing multilayer sheet which does not cause any odor problems while exhibiting high oxygen absorbability without being added with a transition metal salt. Also disclosed are a packaging material made of this multilayer sheet, and a packaging container obtained by molding such a packaging material. Specifically disclosed is an oxygen-absorbing multilayer sheet having a thickness of not less than 250 mum wherein a gas barrier material layer, an oxygen absorbent layer, and a sealing material layer are sequentially arranged in this order. This oxygen-absorbing multilayer sheet is characterized in that the oxygen absorbent constituting the oxygen absorbent layer mainly contains a cyclized product of a conjugated diene polymer. Also specifically disclosed are a packaging material made of this multilayer sheet, and a packaging container obtained by molding such a packaging material.