Packaging film solar cell production process technology, specifically, related to EVA film solar cell production technology package. A certain amount of ethylene - vinyl acetate copolymer, crosslinking agents, antioxidants and light stabilizers into the feed tank mixing, the mixture through the pump into the calendar of the feed box; heating the feed screw and transmission , into the die, which feed screw heating temperature is 80-90 ºC; die's fusing temperature 85-90 ºC; will be rolled into the drum for rolling sheet film processing, made of a certain thickness of the EVA film; the film made for traction, cool. EVA film using this method of rolling processing, film by extrusion, the EVA film in its natural state, did not produce EVA film as easy to produce cast stretch forming deformation, making the EVA film shrinkage smaller, more suitable for solar cell encapsulation.