The paper presents the latest developments of micro-cables in various countries. These information are compiled from the 53rd IWCS/FOCUS of 2004. The development trends seem to be somewhat converged. According to the number of fibers in the cable

fiber units or loose tubes （stranded or central） cables are mostly used. A combination of these two techniques is also reported. Such developments will be an important reference for the future standardization of micro-cables and micro-ducts.