The invention provides a fireproof optical cable. The fireproof optical cable comprises a cable core, a water blocking tape wrapped outside the cable core, a double-sided synthetic mica tape wrapped outside the water blocking tape, an armor layer wrapped outside the double-sided synthetic mica tape, and sheath wrapped outside the armor layer. The fire-resistant optical cable disclosed by the invention ensures high flame retardancy and fire resistance of the optical cable, so that the flame-retardant safety level in the application environment is improved; the full-medium structural design is adopted, so that the anti-thunder and fireproof effects are obvious, and accidents of lightning inducing can be avoided when the cable is directly laid in a room through the existing pole line; and a semi-dry type twisting mode is carried out through loose sleeve layers, so that the overall weight of the optical cable is reduced, and the environmental pollution caused by filling of factice is reduced.