To improve workability of laser perforating, and stabilize gas permeability by providing a pattern-like uncoated parts on an adhesive layer.

A blister packaging mount is composed of a composite sheet 16 formed by laminating thin paper 11 and a laminated film 13 with an adhesive layer 12, which has a pattern of uncoated parts 12a, in between. The laminated film 13 has a sealing layer to be heat-sealed to a blister, which is a sealed body, as one surface layer, and contains easy-peeling parts, which is separated with a lower strength than heat seal strength between the sealing layer and the blister. And the laminated film 13 is provided with many penetrating holes 14.