The title compound [Cu (ADC) (2, 2′-bipy)]n (ADC = C2 (COO)22- ) was prepared and characterized by elemental analysis, IR spectroscopy, X-ray analysis, respectively. The analysis of the crystal structure reveals that the copper atom is five-coordinated with two nitrogen atoms of 2, 2′-bipy and three oxygen atoms of different acetylenedicarboxylate dianions. ADC as bridging ligands link the Cu (II) ions, forming coordination polymer structure.