The event of environment friendly non-noble metallic catalysts that may function at excessive present densities for sluggish oxygen evolution is essential for the large-scale commercialization of water electrolysis. Herein, we now have developed a heterostructure oxygen evolution anode materials that satisfies the necessities of ampere-level present density utilizing a simple calcination-electroplating strategy. Because of the pure p-n junction interface, a build-in electrical discipline is induced within the Ni3P/NiFe LDH electrode, leading to excessive conductivity and low gasoline transmission resistance. On account of its heterogeneous construction, considerable lively websites, and speedy interfacial electron switch, this Ni3P/NiFe LDH displays excellent catalytic efficiency, attaining an oxygen evolution present density of 1.4 A·cm-2 with an ultra-low overpotential of 304 mV. DFT calculations point out that the shaped p-n junction successfully drives electron switch and immediately influences the cost density surrounding the lively middle, thereby enhancing intrinsic exercise. This research highlights the potential use of non-noble metal-based heterojunction supplies as environment friendly catalysts for the oxygen evolution in alkaline water electrolysis.