NOVELTY - Preparation of solar cell protection film involves adding kerosene to surfactant, stirring, adding epoxy resin, stirring, adding polytetrafluoroethylene resin powder, stirring, curing, pre-molding cured material, aging, heat-treating, cooling, drying, slicing cooled product, modifying, heating modified slice, depositing magnesium fluoride film on obtained organic film substrate, depositing titanium dioxide-zirconium oxide-lanthanum oxide mixture film on magnesium fluoride film, and depositing aluminum oxide film on the titanium dioxide-zirconium oxide-lanthanum oxide mixture film.    USE - Preparation of solar cell protection film used for photovoltaic automobile (claimed).    ADVANTAGE - The method enables preparation of solar cell protection film with light transmitting of more than 90% at 400-750 nm, and excellent durability, abrasion resistance, scratch resistance and mechanical performance.    DETAILED DESCRIPTION - Preparation of solar cell protection film involves adding kerosene to surfactant, stirring, adding epoxy resin, stirring, adding polytetrafluoroethylene resin powder, stirring at 10-18 degrees C and 20-80 rpm, curing obtained mixture at 5-30 degrees C in an inert gas atmosphere, pre-molding cured material, aging for 1-48 hours, heat-treating at rate of 10-20 degrees C/minute to 320 degrees C, and at rate of 5-6 degrees C/minute to 320-330 degrees C for 1 hour, respectively, increasing temperature at rate of 10 degrees C/minute to 330-370 degrees C for 30 hours, cooling heat-treated product with water to -5 degrees C to 5 degrees C for 30 minutes, naturally drying, slicing cooled product to thickness of 50-100 mu m, modifying using hydrogen plasma ion, heating modified slice at 148 degrees C under vacuum degree of 3.5x 10-3 Pa, forming organic film substrate, depositing magnesium fluoride film on the substrate under vacuum degree of 3.5x 10-3 Pa, depositing titanium dioxide-zirconium oxide-lanthanum oxide mixture film on the magnesium fluoride film using oxygen under vacuum degree of 2.5x 10-2 Pa, and depositing aluminum oxide film on the titanium dioxide-zirconium oxide-lanthanum oxide mixture film under vacuum degree of 2.5x 10-2 Pa.