TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The raw material of the fluorine-containing polymer coating comprises the pigment comprising black carbon, cobalt blue, chrome yellow, titanium white powder, ferric iron oxide, the raw material of the fluorine-containing polymer coating is composed of the component matched in the following mass proportion: 30-55% of fluorine-containing paint, 20-40% of solvent, the 2-6% of crosslinking agent and solidified agent, 15-40% of filler, 0.5-2% of pigment. The adhesive used by the adhesive layer A and B are respectively independently selected from EVA glue, acrylic resin, polyamine resin, epoxy resin or their modifier. Preparation: Producing the solar cell back film comprises: (a) pre-processing the polyethylene terephthalate (PET) film matrix; (b) performing the dull polishing processing to the raw material component of the fluorine-containing polymer coating after mixing evenly in proportion to form the mixing latex having good leveling and suitable viscosity and the fineness of less than 20mm, directly coating on the pre-processed PET film matrix, then crosslinking and solidifying to form the film at the 50-200 degrees C to obtain the fluorine-containing polymer coating of 15-30 mu m; (c) coating the adhesive layer A of 0.5-5 mu m on one face of fluorine-containing polymer coating to manufacture the solar cell back film; the adhesive layer is EVA glue, acrylic resin, polyamine resin, epoxy resin or their modifier. The producing technique is performed by: (a) performing degreasing and static elimination processing to the PET film matrix; (b) coating the adhesive layer B of 1-5 um thickness at two faces of the PET film matrix processed in (a); (c) performing the dull polishing processing to the raw material component of the fluorine-containing polymer coating after mixing evenly in proportion to form the mixing latex having good leveling and suitable viscosity and the fineness of less than 20mm, directly coating on two faces of the film obtained in (b), then crosslinking and solidifying to form the film at the 50-200 degrees C to obtain the fluorine-containing polymer coating of 15-30 mu m; (4) coating the adhesive layer A of 0.5-5 mu m on one face of the film obtained in (c). Preferred Composition: The component of the fluorine-containing polymer coating composition further comprises the pigment comprising black carbon, cobalt blue, chrome yellow, titanium white powder, ferric iron oxide, the fluorine-containing polymer coating is composed of the component matched in the following mass proportion: 30-55% of fluorine-containing paint, 20-40% of solvent, the 2-6% of crosslinking agent and solidified agent, 15-40% of filler, 0.5-2% of pigment.