On June 8, 1997, Ikeda debuted for the Japan national team against China. She was a member of Japan for 1999, 2003, 2007 World Cups, 2004 and 2008 Summer Olympics. At 2004 Summer Olympics, she played as captain because captain Yumi Obe was reserve member. After 2004 Summer Olympics, she became Japan's captain until 2008 Summer Olympics. She played 119 games and scored 4 goals for Japan until 2008.