The invention discloses a special high temperature-resistant coating on an outer wall of a tobacco-curing furnace, which consists of the following components according to parts by weight: 30-40 parts of organic silicon resin, 5-10 parts of aluminium paste, 8-12 parts of titanium white, 30-40 parts of mixed stuffing, 0.5-1.5 parts of organic bentonite, 2-4 parts of PM, 1-3 parts of PMA (Propylene Glycol Monomethyl Acetate), and 4-6 parts of absolute ethyl alcohol, wherein the mixed stuffing consists of the following components according to parts by weight: 35-45 parts of low-melting point glass powder, 10-20 parts of hollow ceramic microspheres, 10-20 parts of zinc phosphate, 5-15 parts of aluminum tripolyphosphate and 18-22 parts of talcum powder. The special high temperature-resistant coating on the outer wall of the tobacco-curing furnace mainly has the advantages that a viscosity number reaches 85s, the percentage of solid reaches 65%, surface dry only needs 16 minutes, hard dry only needs 6 hours, the thermal endurance is strong, and the coating is not stripped for 6h at 500 DEG C. The coating has the advantages of high temperature resistance, rust prevention, quick drying, heat insulation, environmental protection and the like, can satisfy the use requirements on the outer wall of the tobacco-curing furnace, and is especially applicable for the tobacco-curing furnace.