合成了邻香草醛蛋氨酸铜（Ⅱ）和2．4-二羟基苯甲醛蛋氨酸铜（Ⅱ）配合物，测定了它们在室温下多晶粉末EPR谱及室温和低温下不同溶剂中EPR谱，讨论了它们的成键特性，结果表明，这类配合物中，平面内σ配键和平面内π配键均起重要作用． Synthesis of copper (Ⅱ) o-vanillin methionine and copper (Ⅱ) complexes of 2,4-dihydroxybenzaldehyde methionine were studied. Their EPR spectra of polycrystalline powders at room temperature and EPR spectra of different solvents at room temperature and low temperature were measured. Their bond-forming properties show that in these complexes, both in-plane σ-bonds and in-plane π-bonds play an important role.