Lee played five matches for the South Korea U17 team in 2007 and 2008, and was part of the squad for the 2008 FIFA U-17 Women's World Cup, playing in one group match against Nigeria. She subsequently played fifteen matches for the South Korea U20 team between 2009 and 2012 and was a member of the squad that finished third in the 2010 FIFA U-20 Women's World Cup and reached the quarter-finals of the 2012 FIFA U-20 Women's World Cup. She made her full international debut on 17 September 2014 in a 2014 Asian Games match against India.