A method for producing a fluororesin-laminated film comprising the steps of co-extruding a fluororesin layer (1) and a resin layer (2) which can be peeled off from the fluororesin layer (1), and extrusion-laminating the co-extruded layers on at least one side of a drawn polyethylene terephthalate film while the co-extruded fluororesin layer (1) facing to the drawn polyethylene terephthalate.