A one-step ultrafast laser processing (ULPT) method is introduced to fabricate three-dimensional micro-/nanostructures (3DMNs) on zinc metal anodes, achieving high-performance zinc metal anodes for aqueous zinc-ion batteries (AZIBs). The 3DMNs significantly reduce nucleation overpotential, preferentially absorb zinc ions, and prevent dendritic growth and corrosion. The 3DMNs on the zinc metal anode enable stable zinc plating/stripping for over 2500 h at 2 mA cm⁻²/1 mAh cm⁻², a high Coulombic efficiency of 99.71% in half cells, and improved capacity retention of 71.8% in full cells. The 3DMNs also allow the pouch cell to operate across various bending states without severely compromising performance. The 3DMNs are fabricated using a one-step ULPT method, which avoids complicated procedures such as polishing and protective coating, simplifying the manufacturing of AZIBs. The 3DMNs enhance the feasibility of Zn deposition by increasing the flux of Zn ions on the electrode and preventing the accumulation of by-products. The 3DMNs are composed of 1.56e6 3D conical structures per square centimeter, significantly increasing the specific surface area and providing more electrochemical reaction sites. The 3DMNs are verified to have a hydrophilic and zincophilic surface, which allows for homogeneous Zn²+ distribution and enhances the feasibility of Zn deposition. The 3DMNs also improve the cycling stability of AZIBs by reducing the energy barrier for Zn nucleation and inhibiting dendrite growth. The 3DMNs are fabricated using a one-step ULPT method, which is efficient, repeatable, and suitable for processing micro-/nanostructures with low melting points and flexible materials. The 3DMNs are verified to have a high specific surface area, fast Zn²+ transport, and sufficient Zn loading space. The 3DMNs are also verified to have a low interface resistance and inhibit side reactions. The 3DMNs are fabricated using a one-step ULPT method, which is simple, scalable, and suitable for preparing ultrafine and high-precision 3DMNs on commercial Zn foils. The 3DMNs are verified to have a high capacity of 300 mAh g⁻¹ at 0.1 A g⁻¹ and a high-capacity retention rate of 70.5% after 100 cycles. The 3DMNs are also verified to have excellent flexibility and stability, as demonstrated by the ability to power LEDs and display "HIT" under different bending states. The 3DMNs are fabricated using a one-step ULPT method, which is a novel and practical approach for constructing 3DMNs on Zn anodes toA one-step ultrafast laser processing (ULPT) method is introduced to fabricate three-dimensional micro-/nanostructures (3DMNs) on zinc metal anodes, achieving high-performance zinc metal anodes for aqueous zinc-ion batteries (AZIBs). The 3DMNs significantly reduce nucleation overpotential, preferentially absorb zinc ions, and prevent dendritic growth and corrosion. The 3DMNs on the zinc metal anode enable stable zinc plating/stripping for over 2500 h at 2 mA cm⁻²/1 mAh cm⁻², a high Coulombic efficiency of 99.71% in half cells, and improved capacity retention of 71.8% in full cells. The 3DMNs also allow the pouch cell to operate across various bending states without severely compromising performance. The 3DMNs are fabricated using a one-step ULPT method, which avoids complicated procedures such as polishing and protective coating, simplifying the manufacturing of AZIBs. The 3DMNs enhance the feasibility of Zn deposition by increasing the flux of Zn ions on the electrode and preventing the accumulation of by-products. The 3DMNs are composed of 1.56e6 3D conical structures per square centimeter, significantly increasing the specific surface area and providing more electrochemical reaction sites. The 3DMNs are verified to have a hydrophilic and zincophilic surface, which allows for homogeneous Zn²+ distribution and enhances the feasibility of Zn deposition. The 3DMNs also improve the cycling stability of AZIBs by reducing the energy barrier for Zn nucleation and inhibiting dendrite growth. The 3DMNs are fabricated using a one-step ULPT method, which is efficient, repeatable, and suitable for processing micro-/nanostructures with low melting points and flexible materials. The 3DMNs are verified to have a high specific surface area, fast Zn²+ transport, and sufficient Zn loading space. The 3DMNs are also verified to have a low interface resistance and inhibit side reactions. The 3DMNs are fabricated using a one-step ULPT method, which is simple, scalable, and suitable for preparing ultrafine and high-precision 3DMNs on commercial Zn foils. The 3DMNs are verified to have a high capacity of 300 mAh g⁻¹ at 0.1 A g⁻¹ and a high-capacity retention rate of 70.5% after 100 cycles. The 3DMNs are also verified to have excellent flexibility and stability, as demonstrated by the ability to power LEDs and display "HIT" under different bending states. The 3DMNs are fabricated using a one-step ULPT method, which is a novel and practical approach for constructing 3DMNs on Zn anodes to