The present invention is to ensure that the, section of free optical cable to be generated after the optical cable to the pole on the hypothesis field optical cable free installation device and its mounting structure can be stably installed on a pole or jogaseon. Chapter free optical cable according to the invention the installation apparatus comprising: a base plate, and a plurality of optical cables state, a plurality of cable support arm, and cohesion. A plurality of optical cable fixing part installed at one side of the base plate and the optical cable incoming and outgoing, and secure the optical cable. A plurality of cable support arm is mounted to the base plate, leading the incoming and outgoing optical fiber cable through the government and a plurality of optical cables to be wound in a predetermined diameter. And coupling part is fixed by coupling the base plate to the external one. In addition, a sheet of fiber-optic cable free install field optical cable free installation device according to the invention the electric pole or jogaseon provides a fitting structure of the installation device.