为探究铺层数对氧化石墨烯-碳纤维（GO-CF）增强复合材料弯曲性能的影响，采用真空浸渗热压成型工艺系统制备了3～7层铺层的复合材料试件。基于多尺度分析，利用DIGIMAT软件建立代表性体积单元（RVE）模型，并通过ANSYS进行三点弯曲有限元仿真与试验验证。结果表明：铺层数由3层增至7层，材料弯曲强度由157.18 MPa提高至226.62 MPa，增幅为44.17%；仿真与试验结果的最大误差为8.22%，表明RVE模型具有良好预测精度。铺层数增加提高了GO与CF总质量，改善了树脂浸渗效果与界面结合性能，从而增强了材料的宏观弯曲性能。本研究通过将特定制备工艺与多尺度有限元模拟相结合，验证了RVE模型的可靠性，揭示了铺层数对复合材料组织与弯曲性能的影响机理，为该类复合材料的铺层设计提供了理论依据。

To investigate the effect of ply count on the bending performance of graphene oxide-carbon fiber (GO-CF) reinforced composites, specimens with 3 to 7 plies were prepared using vacuum impregnation hot-pressing process system. Based on a multi-scale analysis approach, a representative volume element(RVE) model was established using DIGIMAT software, and three-point bending finite element simulation was performed using ANSYS, followed by experimental validation. The results indicate that as the ply count increases from 3 to 7, the bending strength of the material increases from 157.18 MPa to 226.62 MPa, representing an improvement of 44.17%. The maximum error between the simulated and experimental results is 8.22%, demonstrating the high predictive accuracy of the RVE model. The increase in ply count raises the total mass of GO and CF, improves resin infiltration, and strengthens the interfacial bonding performance, thereby improving the macroscopic bending performance of the material. By integrating a specific preparation process with multi-scale finite element simulation, this study validates the reliability of the RVE model, reveals the mechanism by which the ply count influences microstructure and bending performance of composites, and provides a theoretical basis for the ply design of such composites.