An addition curing silicone emulsion composition for release paper or film, comprising 100 parts by weight of an organopolysiloxane containing at least two alkenyl groups in a molecule and having an absolute viscosity of at least 0.04 Pa-s at 25°C, 0.1 to 10 parts by weight of an adhesion promoter which is organopolysiloxane containing at least two silicon-bonded alkenyl-containing substituent groups in a molecule, having an alkenyl content of 0.3 to 2.0 mol/100g, a viscosity less than 0.04 Pa.s at 25°C, and having a structure in which two siloxane units in which alkenyl-containing substituent group is bonded to silicon atom are linked directly, or are linked via not more than 3 intervening siloxane units not having alkenyl-containing substituent group bonded to silicon atom, and optionally a compound containing in a molecule at least one substituent group of 2 to 10 carbon atoms having a carbon-carbon unsaturated bond (double or triple bond) as functionality, and also at least one second substituent group having a functional group capable of addition reaction and/or condensation reaction with the alkenyl group in component and/or with a silicon-bonded hydrogen atom in component, 0.1 to 20 parts by weight of an organohydrogenpolysiloxane containing at least three silicon-bonded hydrogen atoms in a molecule, a catalytic amount of platinum group element-based catalyst, surfactant in an amount of 0.1 to 20 parts by weight relative to 100 parts by weight of components, and combined, and 100 to 10,000 parts by weight of water, the composition being curable by heat and UV irradiation in combination. 100 parts by weight of an organopolysiloxane containing at least two alkenyl groups in a molecule and having an absolute viscosity of at least 0.04 Pa-s at 25°C, 0.1 to 10 parts by weight of an adhesion promoter which is organopolysiloxane containing at least two silicon-bonded alkenyl-containing substituent groups in a molecule, having an alkenyl content of 0.3 to 2.0 mol/100g, a viscosity less than 0.04 Pa.s at 25°C, and having a structure in which two siloxane units in which alkenyl-containing substituent group is bonded to silicon atom are linked directly, or are linked via not more than 3 intervening siloxane units not having alkenyl-containing substituent group bonded to silicon atom, and optionally a compound containing in a molecule at least one substituent group of 2 to 10 carbon atoms having a carbon-carbon unsaturated bond (double or triple bond) as functionality, and also at least one second substituent group having a functional group capable of addition reaction and/or condensation reaction with the alkenyl group in component and/or with a silicon-bonded hydrogen atom in component, organopolysiloxane containing at least two silicon-bonded alkenyl-containing substituent groups in a molecule, having an alkenyl content of 0.3 to 2.0 mol/100g, a viscosity less than 0.04 Pa.s at 25°C, and having a structure in which two siloxane units in which alkenyl-containing substituent group is bonded to silicon atom are linked directly, or are linked via not more than 3 intervening siloxane units not having alkenyl-containing substituent group bonded to silicon atom, and optionally a compound containing in a molecule at least one substituent group of 2 to 10 carbon atoms having a carbon-carbon unsaturated bond (double or triple bond) as functionality, and also at least one second substituent group having a functional group capable of addition reaction and/or condensation reaction with the alkenyl group in component and/or with a silicon-bonded hydrogen atom in component, 0.1 to 20 parts by weight of an organohydrogenpolysiloxane containing at least three silicon-bonded hydrogen atoms in a molecule, a catalytic amount of platinum group element-based catalyst, surfactant in an amount of 0.1 to 20 parts by weight relative to 100 parts by weight of components, and combined, and 100 to 10,000 parts by weight of water, the composition being curable by heat and UV irradiation in combination.