Zr⁴⁺-doped hollow spherical Na₃V₂（PO₄）₃ cathode material was prepared by spray drying method, and the influence of different Zr⁴⁺ doping levels （molar ratio of Zr⁴⁺ to Na_3-x V_2-x Zr _x （PO₄）₃） on the material properties was investigated. Techniques such as X-ray diffraction （XRD）, scanning electron microscopy （SEM）, and in-situ XRD were used to analyze the effects of Zr⁴⁺ doping on the structure and electrochemical performance of the material. It can be observed that Zr⁴⁺ doping enhanced the structural stability of the material, effectively inhibiting structural collapse and volume expansion during cycling. When the Zr⁴⁺ doping level was 0.15, Na_2.85V_1.85Zr_0.15（PO₄）₃ （NVZP-15） demonstrated a discharge specific capacity of 76.5 mA?h/g at 15.0 C, with a capacity retention of 80.6% after 800 cycles at 10.0 C.