Using 1-phenyl-3-methyl-5-pyrazolone and salamide,a ligand and its Cu(Ⅱ)complex were synthesized and characterized by IR and UV.X-ray structure analysis indicates that the Cu(Ⅱ)ion is coordinated with an oxygen atom of pyrazolone,a nitrogen atom of imine,an oxygen atom of salicylyl,an oxygen atom of DMF molecule and a bridging oxygen atom from another ligand,forming a distorted five-coordinated square-pyramid configuration.The bridging oxygen atom of the adjacent salicyly connects the two Cu(Ⅱ)ions forming binuclear copper(Ⅱ)complex structure with the distance between these Cu(Ⅱ)ions being 0.3268 nm.Aromatic stacking interactions and intra2 and inter-molecular hydrogen bonds enhance the stability of the molecule.