Ammonium vanadate (NH₄V₄O₁₀: NVO) as cathode for rechargeable aqueous zinc-ion batteries (AZIBs) have drawn extensive concern due to its high specific capacity and long cycle life. The controllable synthesis of high-performance NH₄V₄O₁₀ is greatly desirable for the development of AZIBs but still remains a significant challenge. In this work, sulfuric acid, hydrochloric acid, and nitric acid were used as pH regulators to prepare NVO via a simple one-step hydrothermal route. The resulting NVO product (NVO-1) based on sulfuric acid pH regulator has the optimal overall performance for its favorable structure stability originated from the high crystallinity and wonderful 3D cross-linked nanowire morphology, contributing to fast electron transfer in the (de)intercalation process of Zn²⁺. Consequently, NVO-1 electrode exhibits excellent rate capability and cyclic stability, delivering high reversible capacities of 418.9 and 257.1 mAh g^-1 at current densities of 0.1 and 2 A g^-1, respectively, and demonstrating a discharge capacity of 105.7 mAh g^-1 as well as superior long-term durability with an ultra-high capacity retention of 119.7% at a large current density of 5 A g^-1 after 2000 cycles. Investigation on the electrochemical kinetics reveals that surface capacitive behavior plays a significant role in the highly reversible Zn²⁺ storage in NVO electrode.