Foam copper (CF) and thioacetamide (TAA) were used as copper source and sulfur source respectively, ethanolamine (en) was used as complexant, and ethanol was used as solvent. Under solvothermal conditions, the [Cu(en) 2]^ 2+ metal complex formed by Cu^2+ and ethanolamine reacted with S^2- in solution to obtain an unstable inorganic-organic Cu 2S-TAA precursor, which was used as a molecular template to control the growth of crystals. Finally, Cu 2S tetradecahedron grown on the copper foam was prepared, which can be used as a highly efficient water oxidation catalyst. The anodic oxygen evolution electrochemical performance test of the catalyst showed that in 1 mmol/L KOH electrolyte, when current density was 20 mA/cm 2, overpotential was 200 mV, and the long-term stability for up to 30 hours was maintained.