The multi-scale analysis of carbon-based composites in ablation is simply introduced. Then the application of multi-scale method in properties ho-mogenization, multi-scale ablation morphology and multi-physics coupling of carbon-based materials in ablation is focused on. Finally, a perspective to the multi-scale analy-sis method is given.%简要介绍了碳基复合材料烧蚀性能的多尺度分析方法，重点阐述了多尺度方法在碳基复合材料的等效性能，烧蚀粗糙度形貌，烧蚀多物理场耦合上的应用，最后对多尺度分析方法的应用前景进行了展望。
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