A new binuclear copper(II) complex [Cu₂(MBBA)₂(HPT)₂(H₂O)₂]·2H₂O (1) was synthesized with copper acetate, 2-(4-methylbenzoyl) benzoic acid (MBBA) and 3-(pyridin-2-yl)-1H-1,2,4-triazole (HPT). It crystallizes in the monoclinic space group P2₁/c with a = 14.722(2), b = 8.8907(12), c = 18.5565(18) Å, β = 116.820(7)º, V = 2167.6(5) ų, M_r = 483.96, D_c = 1.483 g/cm³, Z = 4, μ(MoKa) = 1.049 mm^-1, F(000) = 981, the final GOOF = 0.952, R = 0.0586 and wR = 0.0823. The whole molecule consists of two copper ions bridged by two HPT molecules. The central Cu(II) ion is coordinated by six atoms to give a distorted octahedral coordination geometry. The structure of 1 has been determined by X-ray diffraction, IR spectrum and thermal stability analysis. The solid-state fluorescence displays an obvious emission band at 412 nm upon excitation at 330 nm. Magnetic properties indicate that 1 exhibits antiferromagnetic properties.