Transition metal compounds, particularly layered double hydroxides (LDH), are considered as the most promising electrocatalysts owing to their unique two-dimensional layer structures and tunable components. CoNi-LDH was constructed from cobalt nitrate hexahydrate, nickel nitrate hexahydrate, urea and ammonium fluoride by hydrothermal method. CoNi-LDH was etched in sodium nitrate and ferric chloride trihydrate solution at 100 ℃ by fast interface engineering to form FeOOH/CoNi-LDH. SEM, XPS and TEM were used to characterize the morphology and phase of FeOOH/CoNiLDH, and the electrocatalytic oxygen evolution performance was tested in 1 mol/LKOH electrolyte. The results showed that the rough heterogeneous nanorods of FeOOH@CoNi-LDH greatly increase the number of active sites and the conversion rate of active substances. When the current density was 100 mA/cm2, the over potential was 291 mV, meanwhile, Tafel slope was 48 mV/dec. The electrode had good cycle stability and at least 100 h durability.