The lifespan of aqueous zinc ion batteries (AZIB) has been hindered by the instability of zinc anodes, encountering challenges such as ir-regular dendritic growth, corrosion and hydrogen evolution reactions. Here, an ultrathin conductive titanium oxynitride (TiNxOy) layer with rich zincophilic sites is constructed by a high-precision and atomic-scale controlled atomic layer deposition (ALD) technique for sta-bilizing the Zn anode. The TiNxOy layer acts as a bi-functional barrier, effectively isolating metal zinc from the electrolyte and thereby mitigating spontaneous corrosion and hydrogen evolution reaction of the Zn anode. Additionally, it enhances zincophilic sites and ho-mogenizes the distribution of interfacial electric field, facilitating uniform plating and stripping of Zn at the anode. Consequently, the TiNxOy@Zn anode exhibits significantly reduced over-potential and long-term cycling stability over 1300 h at 1 mA cm-2 in symmetric cell. The full cell is assembled with a TiNxOy@Zn anode and MnO2 cathode, achieving a capacity of 85.3 mAh g-1 after 4500 cycles at 10 C.