A new Zn(Ⅱ) complex [Zn(Phen)2(C12H6O4N2)(H2O)]·3H2O with 2,2?-bipyridine-3,3?-dicarboxylic acid and 1,10-phenanthroline(Phen) as ligands was synthesized, and the crystal data are as follows: monoclinic, space group P21/n, a=12.5581(11), b=17.3382(17), c=15.6687(14) ?, β=110.579(2)o, Mr=731.02, V=3193.9(5) ?~3, Dc=1.520 g/cm~3, Z=4, μ(Mo Kα)=0.833 mm-1, F(000)=1508, the final R=0.0431 and w R=0.0936. In the title complex, the central Zn(Ⅱ) ion is located in a distorted octahedral coordination environment. The electrochemical and fluorescent properties were studied. The title complex possesses irreversible electron transfer in the electrode reaction, and it has a strong emission peak in the range of 470~505 nm, with the excitation wavelength being 488 nm.