[目的]研究渗碳9310H钢表面电刷镀镍工艺及其摩擦磨损性能，为其表面强化与再制造提供理论依据。[方法]以渗碳9310H钢为基材，采用电刷镀技术依次沉积Ni底层、Cu中间层和Ni工作层。采用维氏硬度计和激光共聚焦显微镜测定镀层的显微硬度和表面粗糙度。利用往复摩擦磨损试验机评估镀层在30 N和100 N载荷下的耐磨性，采用扫描电子显微镜(SEM)和能量色散X射线光谱(EDS)分析磨痕形貌及元素分布，探讨磨损机制。[结果]采用电刷镀“Ni底层→Cu中间层→Ni工作层”工艺制备的镀层厚度约为50μm，表面平整致密，粗糙度Ra为0.12μm，显微硬度为217 HV_0.5。在30 N载荷下，Ni镀层的磨损量(0.24 mg)与渗碳层相当，磨损机制为氧化磨损与磨粒磨损；在100 N载荷下，Ni镀层磨损量为0.54 mg，低于渗碳层的0.65 mg，磨损机制为磨粒磨损、氧化磨损与粘附磨损共存。[结论]所制备的Ni/Cu/Ni镀层结构致密、结合良好，虽然硬度低于渗碳层，但凭借优异的韧性和抗磨性能，在高载荷条件下展现出更优的耐磨性，适用于渗碳9310H钢的表面修复与强化。

[Objective] The electro-brush nickel plating process on carburized 9310H steel and the friction and wear properties of the obtained coating were studied to provide a theoretical basis for surface strengthening and remanufacturing of the steel. [Method] Ni underlayer, Cu interlayer, and Ni working layer were sequentially electrodeposited on carburized 9310H steel by electro-brush plating. The microhardness and surface roughness of the coatings were measured using a Vickers hardness tester and a laser confocal microscope. The wear resistance of the coatings under loads of 30 N and 100 N was evaluated using a reciprocating friction and wear tester. The morphology and elemental distribution of the wear scars were analyzed by scanning electron microscopy(SEM) and energy-dispersive X-ray spectroscopy(EDS) to investigate the wear mechanisms. [Result] The coating prepared by electro-brush plating Ni underlayer, Cu interlayer and Ni working layer had a thickness of approximately 50 μm, a smooth and compact surface with a roughness Ra of 0.12 μm, and a microhardness of 217 HV_0.5. Under a load of 30 N, the wear mass loss of Ni coating(0.24 mg) is comparable to that of the carburized layer, and its wear mechanism was primarily oxidation wear and abrasive wear. Under a load of 100 N, the wear mass loss of Ni coating was 0.54 mg, lower than that of the carburized layer(0.65 mg), with a composite wear mechanism involving abrasive wear, oxidation wear, and adhesive wear. [Conclusion] The prepared Ni/Cu/Ni coating is compact and well-bonded. Although its hardness is lower than that of the carburized layer, it demonstrates superior wear resistance under high-load conditions due to its excellent toughness and anti-wear properties, making it suitable for the surface repair and strengthening of carburized 9310H steel.