Thermal protection materials and structures, which are correlated to the safety of hypersonic vehicles, are one of the most critical techniques in design and manufacture of hypersonic vehicles.Light-weight, non-ablation, and long-time insulation have been required for thermal protection system due to long-time hypersonic flying in the atmosphere.The problems of present thermal protection system(TPS) are prone to ablation or fragmentation.In this paper, a design of lightweight graded non-ablation multilayer thermal protection structure have been brought forward based on the problems mentioned above.