The invention relates to an epoxy resin fireproof coating capable of ceramization. Materials used for preparing the fireproof coating include nano silica modified epoxy resin. Since nano silica is added into the materials used for preparing the fireproof coating, ceramization can be achieved in the combustion process, the size stability before and after combustion is good, and compared with a common fireproof silicone rubber coating, the mechanical property of the epoxy resin fireproof coating is high. The coating does not contain organic volatile components, is more environmentally friendly, and is of great significance for the study of an economical, practical and high-performance fireproof coating.