The invention relates to an ultra-high weather-resistant optical cable. The ultra-high weather-resistant optical cable is sequentially composed of an optical fiber, an insulating layer, a waterproof layer, a flame-retardant layer, an anti-erosion layer, and an outer sheath from the inside to the outside; wherein, the outer sheath is composed of It is composed of thermoplastic polyurethane elastomer, nickel-chromium alloy and polyamide, and the mass ratio of thermoplastic polyurethane elastomer, nickel-chromium alloy and polyamide in the outer sheath is 10:2-3:5-6. The invention makes full use of the weather resistance, flame retardancy and water resistance of the optical cable by rationally arranging the structure of the optical cable from the inside to the outside, and generally improves the application effect of the optical cable. Maximize the weather resistance of the optical cable, so that the optical cable can be used in harsh or even harsh environments.