The article discusses the development of a novel catalyst, Ru-Co2P/NPC, for enhancing the hydrogen evolution reaction (HER) in alkaline seawater electrolysis. Seawater electrolysis is a promising method for green hydrogen production, but challenges like slow water dissociation kinetics and chlorine-induced corrosion hinder its industrial application. The Ru-Co2P/NPC catalyst addresses these issues by incorporating unique (Co) Lewis acid and (Ru-P) base pair sites on nitrogen and phosphorus co-doped carbon. The catalyst demonstrates exceptional HER performance with low overpotentials and stable operation in both alkaline and alkaline seawater electrolytes. The study elucidates how Co and Ru-P sites play crucial roles in water dissociation and hydrogen desorption, respectively, in alkaline media. Moreover, the catalyst's design prevents chloride corrosion on active sites. This work provides insights into constructing efficient electrocatalysts for alkaline HER in seawater, offering a sustainable approach for hydrogen generation.