Abstract: Sodium-ion batteries （SIBs） are regarded as one of the most promising alternatives to lithium-ion batteries for next-generation energy storage. The development of anode materials with high specific capacity and superior cycling stability is critical to advancing the practical application of SIBs. Metal sulfides （e.g., Bi₂S₃, Sb₂S₃） have emerged as competitive anode candidates for SIBs owing to their remarkable theoretical capacity and high energy density. To address the poor conductivity and significant volume expansion of metal sulfides during cycling, this work proposed a coal tar pitch-derived carbon-coating strategy. A Bi₂S₃/Sb₂S₃ composite was first synthesized via hydrothermal method, followed by coal tar pitch coating, high-temperature pyrolysis, and sulfurization, ultimately yielding a pitch-derived carbon-encapsulated Bi₂S₃/Sb₂S₃ nanocomposite （Bi₂S₃/Sb₂S₃@SNC）. SEM, TEM, and XPS characterizations confirm that Bi₂S₃/Sb₂S₃@SNC possesses a three-dimensional continuous porous network structure, which provides shortened ion diffusion pathways and abundant sodium storage sites, thereby enhancing rate capability and capacity. Systematic electrochemical analyses characterized by LSV, EIS, and GITT reveal the influence of sulfide ratios on sodium storage kinetics. The optimized Bi₂S₃/Sb₂S₃@SNC-1 （Bi∶Sb = 1∶3） exhibits the lowest charge-transfer resistance and a high pseudocapacitive contribution of 96%, facilitating the formation of a stable solid-electrolyte interphase （SEI） and accelerated ion/electron transport. When evaluated as a SIB anode, Bi₂S₃/Sb₂S₃@SNC-1 delivers exceptional cycling stability of 494.4 mAh/g after 200 cycles at 0.2 A/g and rate performance of 419.6 mAh/g at 0.05 A/g and 282.0 mAh/g at 5 A/g, with 67.2% capacity retention. This work provides a novel strategy for designing high-performance metal sulfide anodes for SIBs.