A luminous ternary complex Sm/Gd(DBM)3phen was synthesized by coordination of samarium using dibenzoyl methane(DBM) as the first liand, 1, 10-phenanthroline(phen) as the second ligand and samarium chloride reaction in the ethanol.A bonded rare earth polyacrylamide copolymer was prepared by copolymerization of the samarium ternary complex with polyacrelamide (PAM). The composition, structure, fluorescence properties and stability of complex and copolymer were characterized by means of elemental analysis, Fourier transform infrared spectroscopy, UV spectroscopy, fluorescence spectroscopy and thermogravimetric analysis, the research results show that the Sm/Gd(DBM)3phen/PAM luminescence performance is better than that of Sm/Gd(DBM)3 phen, the characteristic luminescence of samarium ion 4G5／2—6H5／2, 4G5／2—6H7／2, 4G5／2—6H9／2 at 559,597,643 nm is excited by UV light. The non-luminescent Gd3+ has a significant enhancement on the fluorescence intensity of luminescent Sm3+.