NOVELTY - A solid polymer electrolyte membrane laminate is formed by bonding an adhesive polymer film to surface(s) of solid polymer electrolyte membrane. Adhesive polymer film has adhesion layer containing non-crystalline polypropylene formed on single surface of base material layer, and a release layer formed on other surface of the base material layer. The adhesion layer has dynamic hardness of 0.15-1.4 gf/square micron at 30 degrees C under relative humidity of 60%. The release layer has tensile elasticity modulus of 0.1-1 GPa at 30 degrees C under relative humidity of 60%.    USE - Solid polymer electrolyte membrane laminate is used for polymer electrolyte fuel cell used as power supply for electric vehicles.    ADVANTAGE - The solid polymer electrolyte membrane laminate has shape stability, handling property, heat resistance and methanol permeation-proof property, and reduced generation of wrinkles of polymer electrolyte membrane during transportation, preservation, corrugation, flaw and peeling.    DETAILED DESCRIPTION - A solid polymer electrolyte membrane laminate is formed by bonding an adhesive polymer film to at least one surface of a solid polymer electrolyte membrane through an adhesive layer. The adhesive polymer film has adhesion layer containing non-crystalline polypropylene formed on single surface of a base material layer containing crystalline polypropylene, and a release layer formed on other surface of the base material layer. The adhesion layer has dynamic hardness of 0.15-1.4 gf/square micron at 30 degrees C under relative humidity of 60%. The release layer has tensile elasticity modulus of 0.1-1 GPa at 30 degrees C under relative humidity of 60%. The total thickness of the adhesion layer, base material layer and release layer is 5-200 mu m. The thickness of the adhesion layer and release layer is 0.2-15 mu m and 0.15-13 mu m, respectively. The peeling strength of adhesive polymer film and solid polymer electrolyte membrane is 0.005-1 N/20 mm at 30 degrees C under relative humidity of 60%.