In July 1996, Michiki was selected the Japan U-23 national team for 1996 Summer Olympics and he played in all matches. In first match against Brazil, he assisted Teruyoshi Ito's goal and Japan won Brazil (1-0). It was known as "Miracle of Miami" () in Japan. On October 13, 1996, he debuted for Japan national team against Tunisia. He was selected Japan for 1996 Asian Cup in December, but he did not play in the match. He played 4 games for Japan until 1997.