Optical cable with corrosion-resistant skin

The invention relates to the technical field of optical cables, in particular to an optical cable with a corrosion-resistant skin, an inner protective layer is mounted on the side of a main metal wire, an inner second layer sleeves the side of the inner protective layer, an outer protective layer sleeves the side of the inner second layer, and an auxiliary metal wire is mounted in the outer protective layer. The side part of the outer protective layer is sleeved with an outer three-layer, the outer three-layer is made of three-tenth polyimide, three-tenth polypropylene and four-tenth polyphenylene sulfide, the polyimide has relatively high thermal stability and corrosion resistance, the polypropylene has relatively high telescopic force, and the cable is suitable for severe environments such as high temperature and high pressure, and can be used for a long time. Polyphenylene sulfide has good flame retardance and certain elasticity, a good corrosion-resistant combined material can be obtained through mixing o