As for the electric wire, the cable for the power supply of our country, it is provided equipment under the a great variety of environment, and, as for the insulation electric wire, the cable for the supply of electric power, it is enormous facilities quantity, and various malfunction phenomena occur among other things in the late years. In Institute of Electrical Engineers of Japan “committee (from January, 2015 to December, 2016) for the supply of electric power specialized in the actual situation and a problem investigation into diagnosis, evaluation technique in an insulation electric wire, the cable”, I investigate a diagnosis, an evaluation method and the technique trend in each process before the production of an insulation electric wire, the cable reaching the recycling and explain it about the contents of the technical report to gather in this investigation specialty committee.