Poly (9,9-dialkylfluorene-2,7-diyl) derivatives end capped with 2,7-dibromo-9,9-dihexylfluorene and conductive fluorene substituents have been synthesized through Ni(0), the nickel-catalysed reduction with metallic zinc-mediated polymerization. When electron and hole recombined and formed a exciton in emitting layer. Singlet exaction and triplet exaction is the ratio of one to three. One is fluorescence and three is phosphorescence, but phosphorescence is almost sustained a loss. Not only to shift blue region but to increase phosphorescence efficiency, it is substituted Eu for the terminal H in this polymer chain. P1-Eu showed green emission at 533nm while P1 had at 548nm. The main emission peaks of the P1-Eu shift shorter wavelength. Besides we observed another emission peaks of the P1Eu at 418nm.