PURPOSE: To obtain a film/paper laminate with good writability without curling of the medium or blur of an ink by laminating and adhering a thin paper to both faces of a film.

CONSTITUTION: A thin paper belongs to a foreign paper, with Bekk smoothness 60-120 seconds, density 0.8-1g/cm2 and size 0.5-1.5 seconds. When the thin paper is laminated and adhered to a synthetic resin film, the laminated sheet of this invention is obtained. The adhesive agent is preferably of thermosetting type to obtain a water-proof sheet. In this case, an urethane adhesive agent is preferable.