A new tetranuclear copper（ Ⅱ） compound containing dissyrnmetrical oxamidate ligand was synthesized and structurally characterized by IR spectroscopy, elemental analysis, single-crystal X-ray diffraction, and magnetic properties. The title compound 1 crystallizes in triclinic, space group P^-1 with a = 8.9547（9）, b = 11.7018（9）, c = 12.0288（10） A, a = 110.1790（10）, β = 100.0700（10）, ）, = 100.6780（10）°, V= 1122.97（17）A^3, C34H48C12Cu4N10O16, Mr = 1177.92, Dc = 1.742 g/cm^3,μ（MoKa） = 2.067 mm^-1, F（000） = 600, Z = 1, the final R = 0.0391 and wR = 0.1073 for 3904 observed reflections （I 〉 2σ（I））. In the structure, complex 1 consists of a tetranuclear unit and two perchlorate anions. Furthermore, its magnetic properties have also been investigated.
