an electrical connection structure that is able to electrically connect wiring to a biopolymer , a production method of the electrical connection structure , and an electric wiring method which is able to perform wiring on a nanometer - scale . a first aspect of the production method of the present invention uses a carbon nanotube as an electrode , and makes the carbon nanotube contact the biopolymer . a second aspect of the production method applies electric current between the electrode and the biopolymer of the first aspect . the electrical connection structure of the present invention comprises at least the electrode formed by the carbon nanotube and the biopolymer , wherein the electrode is in contact with the biopolymer . in the electric wiring method of the present invention , the electrode formed by the carbon nanotube contacts the biopolymer to complete an electrical connection .