Electrolytic ion grounding system

The invention provides an electrolytic ion grounding system, which comprises an ion grounding rod and a vent cap arranged at the upper end of the ion grounding rod. The vent cap is applied to the ion grounding rod, so that flowing of soil air around an electrolytic ion grounding pole is controlled, and the problem that the reaction time is unstable due to different soil environment adaptabilities of electric ion deliquescence after the electrolytic ion grounding pole is buried underground is solved; and the requirements of a lightning protection grounding project on designed grounding indicators under different soil environment conditions are met. The air flow passing in and out of the vent cap is controlled through the vent cap designed on the electrolytic ion grounding pole, so that the deliquescence time and the deliquescence speed of the electrolytic ion grounding pole are controlled; the deliquescence quantity of electric ions in soil is skillfully controlled according to different requirements of the gr