石墨烯由于具有超高的导热性能，在热管理上有着广阔的应用前景。从修复结构缺陷出发，以氧化石墨烯为原料，有机小分子萘甲醇为修复剂，采用蒸发自组装法制备氧化石墨烯/萘甲醇(GO/NMT)复合薄膜，然后经过高温石墨化得到石墨化–石墨烯/萘甲醇(g-GO/NMT)薄膜。通过SEM、FT-IR、XRD、拉曼对制备的复合薄膜进行结构分析，并对其导热性能进行测试，当NMT的添加量为15%时，薄膜热导率达856.476 W/(m·K )，比石墨化–石墨烯(g-GO)薄膜的热导率提高了35%；通过对商用LED灯芯实际散热进行测试，g-GO膜的表面温度高达33.7 ℃，而g-GO/NMT复合膜的温度较低，仅为31.5 ℃。研究结果表明，g-GO/NMT复合膜具有更好的散热性能和更有效的热管理能力。“,”Graphene has broad application prospects in thermal management due to its ultra-high thermal conductivity. In order to repair the structural defects, graphene oxide/naphthalene (GO/NMT) methanol composite films were prepared by evaporation self-assembly method with graphene oxide as raw material and naphthalene methanol as repair agent. Graphitized-graphene/naphthalene methanol (g-GO/NMT) films were prepared by high temperature graphitization. The structure of the composite film was analyzed by SEM, FT-IR, XRD and Raman. When the addition of NMT was 15%, the thermal conductivity of the film was 856.476 W/(m·K ), which was 35% higher than that of g-GO film. The actual heat dissipation test of commercial LED wick showed that the surface temperature of g-GO film was as high as 33.7 ℃, while the temperature of g-GO/NMT composite film was 31.5 ℃. The results show that g-GO/NMT composite film has better heat dissipation performance and more effective heat management ability.