With the increasing demand of oil and gas in China, the petroleum refining and chemical enterprises have made great progress. The steel structure is the main body of the refining device with the poor flame resistant ability. When the temperature is higher than 300 degree C, the yield strength of the steel structure will be reduced sharply. The strength of the steel will lose efficacy rapidly when the temperature exceeds 600 degree C, which will lead to the collapsing and destroying of the structure. The fire of refinery enterprises belongs to hydrocarbon fire, which is more violent than cellulose fire. The temperature of the hydrocarbon fire rises faster and higher, so the damage is more serious. The fire resistant protection for steel structure of refinery and chemical devices usually adopt fireproof coating, and epoxy fireproof coating is applied widely in this field due to its excellent mechanical properties, bond strength and corrosion resistance.