Aim\ Synthesizing the rare earth (Eu) polymer ternary complexes and studing its photophysical process of photoluminescence. Methods\ Rare earth (Eu) polymer ternary complexes were synthesized using copolymer of 4 vinyl pyridine and methyl methyl acrylate as ligand

and using Phen as coordination ligand. The process of photoluminescence of the complexes was discussed more fully by UV spectra and fluorescence spectra. Results\ The copolymer of 4 vinyl pyridine can coordinate with rare ions directly by nitrogen atom in the pyridine ring

and the small ligand have coordination effect. Conclusion\ The rare earth ternary complexes have strong fluorescence intensity.