Iridium oxide has many potential applications, which can be used to prepare anode coating materials. The doped electrode has good electrocatalytic activity and electrolytic durability, and the advantages of good stability, high current and long working life when used in acidic electrolytic solutions. In addition, iridium oxide can be used to make catalysts for regenerative fuel cells and high-precision pH electrodes. Since the adsorption of oxygen by Ir is reversible, and IrO2 is a peroxy structure, the catalytic activity of this crystal structure will not be destroyed by oxygen infiltration, which is why the iridium oxide electrode becomes a long-life oxygen evolution electrode. In the process of wastewater treatment, iridium oxide electrode is used to electrocatalyze wastewater treatment, which greatly improves the biodegradability of wastewater and reduces the toxicity of wastewater.