Water-proof paper-plastic package bag

The utility model provides a water-proof paper-plastic package bag which solves the technical problems that products in an existing paper-plastic package bag are not visible and the water-proof effect is poor. The water-proof paper-plastic package bag comprises a base layer. A paper layer is fixed on the base layer. An observation hole is formed in the paper layer. A PET film layer is fixed on the paper layer. The paper layer is fixedly connected with the PET film layer through an adhesive layer. The water-proof paper-plastic package bag has the advantages of being good in stiffness, high in moisture-proof performance and the like.