NOVELTY - Glass material is punched, to obtain anode and cathode. The dirt on back glass surface is cleaned. The anode and cathode which are placed together, and bus bar are welded to battery. The anode and cathode are clamped to battery with ethylene-vinyl acetate copolymer glue or polyvinyl butyral glue. The clamping process is carried out by glue film cutting, cutting tin-coated copper belt, paving polyvinyl butyral film and ethylene-vinyl acetate copolymer film and packing back plate, to obtain noncrystalline silicon thin-film solar cell. The polyvinyl butyral glue has density of 1.07 g/cm3.    USE - Preparation of noncrystalline silicon thin-film solar cell (claimed).    ADVANTAGE - The method enables preparation of noncrystalline silicon thin-film solar cell having excellent durability and package efficiency, with high yield.    DETAILED DESCRIPTION - Glass material is punched, to obtain anode and cathode. The dirt on back glass surface is cleaned. The anode and cathode which are placed together, and bus bar are welded to battery. The anode and cathode are clamped to battery with ethylene-vinyl acetate copolymer glue or polyvinyl butyral glue. The clamping process is carried out by glue film cutting, cutting tin-coated copper belt, paving polyvinyl butyral film and ethylene-vinyl acetate copolymer film and packing back plate, to obtain noncrystalline silicon thin-film solar cell. The polyvinyl butyral has density of 1.07 g/cm3, molecular weight of 30000-45000, melt index of 1.488 at 20 degrees C, water absorption of less than 4%, softening temperature of 60-65 degrees C, glass transition temperature of 66-84 degrees C and solubility with respect to alcohol, ketone, ether and ester organic solvent, and is insoluble with respect to hydrocarbon (C7H14O) solvent chosen from gasoline and other petroleum solvent. The clamping with ethylene-vinyl acetate copolymer glue or polyvinyl butyral glue is carried out by mounting trolley in reactor, inspecting, loading pressure reactor, discharging sample, melting polyvinyl butyral glue, adhering glass and battery, opening door of high-pressure reactor, unloading components, providing ethylene-vinyl acetate copolymer to battery, sealing and drying for predetermined time, and testing power and conversion efficiency of sealed component.