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A new rare earth complex Eu (Ⅲ)(TTA)2 (MA)2 Phen·H2O was synthesized and characterized by element analysis, FTIR, UV, thermal analysis, and fluorescence spectra. The strong fluorescence and high used to modify resin. The copolymer containing europium was prepared by copolymerization of Eu(Ⅲ) and styrene/α-methyLacrylic acid, and characterized by FHR and fluorescence spectra. The fluorescence spectra showed that the copolymer was a sort of materials with good fluorescence property, and the higher fluorescence intensity came from the higher europium content.