To provide a laminated packaging material and a laminated packaging bag, which have an oxygen barrier property and superior pinhole resistance, and are used in a field of medical supplies, medicines, and foods, where the quality of a content is deteriorated easily by incoming oxygen, in order to control the formation of a pinhole during a transportation process and prevent the deterioration of the content.

The laminated packaging material 10 having the oxygen barrier property is used to house an easy-oxidizable material. The packaging material 10 includes a print base material layer a, an intermediate layer c, and a heat-weldable sealant layer e, the layers a, c, e laminated in the order of description. The print base material layer a and the intermediate layer c are laminated via an adhesive resin, according to an extrusion lamination method, while the intermediate layer c and the sealant layer e are laminated via a urethane adhesive d, according to a dry lamination method.