NOVELTY - A packaging film comprises 40-55 parts mass fluorine-containing resin, 0.5-4.5 parts mass silane coupling agent, 0.01-0.6 part mass organic peroxide, 0.01-0.8 parts mass cross-linking catalyst, 10-45 parts mass inorganic filler, 10-45 parts mass modified resin, 0.05-1 parts mass lubricant, and 0.2 part mass functional additive. The fluorine-containing resin is ethylene, tetrafluoroethylene, hexafluoropropylene and 1,2,2-trifluoro-styrene copolymer. The inorganic filler is titanium, aluminum, tin, and oxides of silicon.    USE - Packaging film is used for solar battery.    ADVANTAGE - The packaging film has excellent anti-ultraviolet aging property, moisture resistance, weather resistance and mechanical property.    DETAILED DESCRIPTION - A packaging film comprises 40-55 parts mass fluorine-containing resin, 0.5-4.5 parts mass silane coupling agent, 0.01-0.6 part mass organic peroxide, 0.01-0.8 parts mass cross-linking catalyst, 10-45 parts mass inorganic filler, 10-45 parts mass modified resin, 0.05-1 parts mass lubricant, and 0.2 part mass functional additive. The fluorine-containing resin is ethylene, tetrafluoroethylene, hexafluoropropylene and 1,2,2-trifluoro-styrene copolymer. The inorganic filler is titanium, aluminum, tin, and oxides of silicon. The molar ratio of ethylene and tetrafluoroethylene is 30-70:70-30. The content of copoylmer of ethylene and tetrafluoroethylene is 90-99.9 mol%. The molar ratio of hexafluoropropylene and 1,2,2-trifluoro-styrene copolymer is 10-90:90-10. The content of copoylmer of hexafluoropropylene and 1,2,2-trifluoro-styrene copolymer is 0.1-10 mol%. An INDEPENDENT CLAIM is included for manufacture of packaging film, which involves mixing portion of fluorine-containing resin with silane coupling agent and organic peroxide, extruding, to obtain granules (A), mixing remaining portion of fluorine-containing resin with cross-linking catalyst, extruding, to obtain granules (B) where ratio of granules (A) and granules (B) is 90-98:2-10, mixing granules (A) and granules (B) with inorganic filler, modified resin, lubricant, functional auxiliary agent, extruding, blowing, to obtain packaging film having thickness of 20-40 microns.