<p>The present invention relates to a connecting closure for an optical cable branch, which directly branches only a relevant core into units from an intermediate point of an existing optical cable without a parallel installation of a new optical cable from an existing connecting closure, and three-dimensionally connects an optical cable for a dummy having an extra length to the intermediate point so as to increase the utilization of the existing optical cable and reduce the size of the closure to satisfy license conditions for communication device connection closures.</p>
