NOVELTY - A gas barrier film comprises laminated vapor deposition layer (2) of polymer film base material (1) containing inorganic compound and gas barrier layer (3) containing crosslinked resin of vapor deposition layer. The inorganic compound is inorganic compound containing silicon type oxide and the gas barrier layer has unsaturated nitrile (10-30 mass parts), and non-aromatic unsaturated compounds (30-70 mass parts) which have hydroxyl group. The crosslinked resin contains copolymer resin (A), isocyanate compound (B) and compound (C1) and silane compound (C2).    USE - Gas barrier film for electronic device industries, such as flat-panel displays, LCD, organic electroluminescent display, electronic paper and solar cell, packaging of foodstuff, pharmaceutical and electronic component.    ADVANTAGE - The film has excellent gas barrier property, transparency and heat resistance, and does not require high temperature heat processing at time of barrier layer forming.    DETAILED DESCRIPTION - A gas barrier film comprises laminated vapor deposition layer (2) of polymer film base material (1) containing inorganic compound and gas barrier layer (3) containing crosslinked resin of vapor deposition layer. The inorganic compound is inorganic compound containing silicon type oxide and the gas barrier layer has unsaturated nitrile (10-30 mass parts), and non-aromatic unsaturated compounds (30-70 mass parts) which have hydroxyl group. The crosslinked resin contains copolymer resin (A) which makes monomer (3-60 mass parts) of unsaturated compounds chosen from unsaturated carboxylic ester, styrene, unsaturated carboxylic acid, unsaturated hydrocarbon and epoxy acrylate, isocyanate compound (B) and compound (C1) which has greater than or equal to 2 carboxylic acid groups or greater than or equal to 1 carboxylic acid anhydride group and silane compound (C2) which has organic functional group and hydrolyzable functional group in 1 molecule on vapor deposition layer with inorganic compound.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the gas-barrier film.    Polymer film base material (1)    Vapor deposition layer (2)    Gas barrier layer (3)