NOVELTY - Ethylene vinyl acetate adhesive film comprises (in wt.%): ethylene-vinyl acetate ester copolymer (80-90), tert.-butyl peroxy benzoate (1-2), 2-(3,4 epoxycyclohexyl)ethyltrimethoxysilane (0.5-1), distearate pentaerythritol diphosphite (0.05-2), tert.-butylperoxy-2-ethylhexyl carbonate (0.5-1), hexadecyl 3,5-bis-tert.-butyl-4-hydroxybenzoate (1-3) and the rest is organic solvent. The tert.-butyl peroxy benzoate is cross-linking curing agent. The 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane is silane coupling agent. The distearate pentaerythritol diphosphite is antioxidant.    USE - Ethylene vinyl acetate adhesive film used for solar energy battery package (claimed).    ADVANTAGE - The ethylene vinyl acetate adhesive film ensures high volume resistivity, high transmittance, low yellow index, good dispersibility, improves the photoelectric conversion rate of battery, and is prepared in a simple manner.    DETAILED DESCRIPTION - Ethylene vinyl acetate adhesive film comprises (in wt.%): ethylene-vinyl acetate ester copolymer (80-90), tert.-butyl peroxy benzoate (1-2), 2-(3,4 epoxycyclohexyl)ethyltrimethoxysilane (0.5-1), distearate pentaerythritol diphosphite (0.05-2), tert.-butylperoxy-2-ethylhexyl carbonate (0.5-1), hexadecyl 3,5-bis-tert.-butyl-4-hydroxybenzoate (1-3) and the rest is organic solvent. The tert.-butyl peroxy benzoate is cross-linking curing agent. The 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane is silane coupling agent. The distearate pentaerythritol diphosphite is antioxidant. The tert.-butylperoxy-2-ethylhexyl carbonate is cross-linking curing agent. The hexadecyl 3,5-bis-tert.-butyl-4-hydroxybenzoate is ultraviolet absorbent. An INDEPENDENT CLAIM is included for a method for preparing an ethylene vinyl acetate adhesive film, which involves:    (A) weighing the raw materials such as ethylene-vinyl acetate ester copolymer, tert.-butyl peroxy benzoate, 2-(3,4 epoxycyclohexyl)ethyltrimethoxysilane, distearate pentaerythritol diphosphite (0.05-2), tert.-butylperoxy-2-ethylhexyl carbonate (0.5-1), hexadecyl 3,5-bis-tert.-butyl-4-hydroxybenzoate and organic solvent;    (B) adding ethylene-vinyl acetate ester copolymer, tert.-butyl peroxy benzoate and 2-(3,4 epoxycyclohexyl)ethyltrimethoxysilane to the distearate pentaerythritol diphosphite, hexadecyl 3,5-bis-tert.-butyl-4-hydroxybenzoate and organic solvent;    (C) fully mixing the mixture; and    (D) extruding the obtained mixture in a double-screw extruding machine to obtain the desired product.