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Achieving high activity and stability oxygen evolution reaction (OER) catalysts to optimize the efficiency of metal-air battery,water splitting and other energy conversion devices,remains a formidable challenge.Herein,we demonstrate the metallic porous nanowires arrays with abundant defects via nitrogen and copper codoped CoS1.97 nanowires (N-CuCoS1.97 NWs).The N-CuCoS1.97 NWs can serve as an excellent OER self-supported electrode with an overpotential of 280 mV (j=10 mA cm-2) and remarkable long-term stability.The X-ray absorption near-edge structure (XANES) and X-ray photoelectron spectrum (XPS) measurements confirmed the surface lattice oxygen created on the N-CuCoS1.97 NWs during OER.Then,the density function theory (DFT) results evident that lattice oxygen constructed surface of N-CuCoS1.97 NWs has more favorable OER energetic profiles and absorption for reaction intermediate.More importantly,the flexible and wearable Zn-air battery fabricated by the N-CuCoS1.97 NWs shows excellent rechargeable and mechanical stability,which can be used in portable mobile device.