The ion grounding electrode features a surface of specialized copper alloy, internally containing a unique formula of internal filler, and externally coated with a resistance-reducing and moisture-retaining external filler. The internal filler, through hygroscopic action, slowly and effectively releases active electrolyte ions into the surrounding soil over a long period, significantly reducing the soil's resistivity. This maintains the soil's conductivity around the grounding electrode at a high level, allowing fault currents to quickly dissipate into the surrounding soil. The external filler has excellent water absorbency, expansibility, and ionic permeability, enabling it to thoroughly and extensively contact the surrounding soil while effectively preventing corrosion of the grounding electrode. It maintains a certain level of moisture around the electrode regardless of weather or environmental changes, ensuring a conductive state.