Abstract: In order to improve the anti-friction and anti-wear properties of glass fiber/epoxy (GF/EP) composites, flexible MoO₃ nanobelt-oxide carbon nanotubes film (m-MoO₃-OCNTs) was prepared by the modified vacuum filtration technique, and m-MoO₃-OCNTs modified GF/EP (m-MoO₃-OCNTs-(GF/EP)) composites were prepared by vacuum assisted resin transfer molding (VARTM) process. The results show that m-MoO₃-OCNTs can significantly improve the thermal conductivity and self-lubricating properties of the GF/EP composite. Under the dry friction test conditions, a high-quality continuous transfer film can be formed between the m-MoO₃-OCNTs-(GF/EP) composites and the dual surface, which can effectively transfer the friction heat. Compared with the pure GF/EP composite, the friction and wear resistance of m-MoO₃-OCNTs-(GF/EP) composite is improved by about 4 times.