Photopolymerization type photosensitive phosphor paste composition useful for formation of a fluorescent film in a plasma display panel which is one of flat panel display, and method for forming a fluorescent film in a plasma display panel by using the same, the composition consisting of a binder polymer, a multifunctional monomer or oligomer, a UV photosensitizer, a flourescent material, a solvent, additives and dispersant, whereby, different from the related art photosensitive flourescent paste, as the photopolymerization type photosensitive flourescent paste of the present invention can be developed by pure water, the paste is environment friendly and has a low baking temperature, that permits an easy flourescent film formation, the present invention is suitable for formation of a flourescent film for a large sized screen over 40″ and an HDTV PDP.