A new binuclear nickel(II) complex [Ni₂(MBBA)₂(HPT)₂(H₂O)₂]·2H₂O (1) was synthesized with nickel hydroxide, 2-(4-methylbenzoyl)benzoic acid (HMBBA) and 3-(pyridin-2-yl)-1H-1,2,4-triazole (HPT). It crystallizes in the monoclinic space group P2₁/n with a = 14.5902(13), b = 8.8191(6), c = 17.6120(14) Å, β = 110.830(9)º, V = 2118.0(3) ų, M_r = 958.26, D_c = 1.503 g/cm³, Z = 2, μ(MoKa) = 0.959, F(000) = 992, the final GOOF = 1.001, R = 0.0353 and wR = 0.09864. Each central Ni(II) ion is coordinated by two oxygen and three nitrogen atoms, forming a distorted square pyramidal geometry. The XRD, TG, spectrum analysis and magnetic properties of 1 were studied.