Abstract: At present, IEC standard and DL standard has no specific limitation value on the ground resistance of HVDC electrode system, however, in some oversea projects, this value is limited additionally. When the soil resistivity of electrode site is extremely high, the ground resistance will increase as well. Consequently, we list the ground resistances of plenty of as-built HVDC electrode projects, revealing that some projects can operate normally with ground resistance > 0.35 Ω. Through theoretical derivation and simulation calculation, we analyze the effects of high ground resistance on the steady-state temperature rise, transient temperature rise, step potential, touch potential, loss, and DC bias of the surrounding transformer. Based on Belo Monte Ⅱ UHVDC project Terminal Rio electrode design case, the conclusion can be drawn that high ground resistance will not influence the stability operation of electrode with reasonable design. The comparison of different design cases reveals that canceling the limitation of ground resistance can save engineering costs without impairing the safe and stable operation of electrodes.