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