The utility model discloses a protective self-supporting round access optical cable including a sheath used for receiving a suspension wire running through the sheath. The lower part of the sheath is connected with a round access optical cable through a hanger. The round access optical cable includes an optical fiber, and an optical fiber jacketing layer, a reinforcing component layer, an inner sheath layer and an outer armor layer arranged outside the optical fiber and distributed from inside out successively. According to the utility model, an optical fiber protecting layer is added, so that the protective self-supporting round access optical cable can be applied to outdoor occasions with rats, ants, cicadas and the like. Glass fiber yarn is adopted and the outer sheath is made of nylon material, so that damages to the optical cable caused by animals or other factors are eliminated and dual protection is realized. Color strips are added under the premise of retaining characteristics of a prior self-supporting optical cable structure, so that the protective self-supporting round access optical cable can be distinguished in an area with high-density wire arrangement. The protective self-supporting round access optical cable with the above structure is mature in production technique, convenient for construction and good in market prospect.