The invention relates to high-temperature flame proofing material and a high-temperature flame proofing method. The high-temperature flame proofing material at least comprises a ceramic chip and a support body, wherein, the ceramic chip is connected with the support body through a fastening piece; and the support body is used for combining the high-temperature flame proofing material with the surface needing protection. The high-temperature flame proofing method adopts the scheme that the high-temperature flame proofing material is fixed on the surface needing protection so as to achieve high-temperature flame protection. The high-temperature flame proofing material is not made of ablative material, belongs to an non-ablative composite material protection system, has the chracteristics of no ablation, reusability and the like, is convenient to construct, and is simple and convenient to maintain. In addition, the connection reliability under the high-temperature condition can be ensured by adopting the method combining mechanical joint with bonding, and the stability of a high-temperature flame protection system can be provided. The high-temperature flame proofing material is suitable for being used at a high temperature ranging from 500 to 1500 DEG C.