Full-dry optical fiber ribbon flat lead-in optical cable and preparation method thereof

The invention belongs to the field of optical cables, and particularly relates to a full-dry optical fiber ribbon flat lead-in optical cable and a preparation method thereof. The full-dry optical fiber ribbon flat lead-in optical cable comprises an outer sheath and a unit cable, an outer reinforcing element is arranged on the inner surface of the outer sheath, a reinforcing core is embedded in the outer sheath, and the unit cable is wrapped in the center of the outer sheath; each unit cable comprises an inner sheath and an optical fiber structure, an inner reinforcing element is arranged on the inner surface of the inner sheath, the optical fiber structure is wrapped in the inner sheath, and the optical fiber structure comprises a plurality of layers of optical fiber ribbons which are arranged in a stacked mode. The full-dry type optical fiber ribbon flat type leading-in optical cable is simple in structure, light in weight, suitable for short-distance overhead, pipeline leading-in and indoor arrangement, eas