Green hydrogen production through water electrolysis is seen as crucial for achieving zero-carbon targets by 2050. However, the current cost of green hydrogen is not competitive with grey hydrogen produced from fossil fuels, limiting its widespread use. Direct alkaline seawater electrolysis is proposed as a cost-effective alternative, eliminating the need for pure water input and reducing operational expenditure. Increasing the operating current in seawater electrolysis can further reduce production costs. Anodes for seawater electrolysis face challenges like corrosion, but the development of NiFe layered double hydroxide-based anodes shows promise in addressing these issues. By exploring interlayer anion exchange strategies, particularly with highly basic anions such as phosphate, the OER activity and corrosion resistance of the anodes can be significantly enhanced, making them viable for large-scale applications.