The tweet in question has not been disclosed by the governing body, but it has been confirmed that the post included a reference to gender.
Ferdinand's sanction, which also includes a £25,000 fine, is open to appeal, but will rule him out of Premier League fixtures against Chelsea, Manchester City and Newcastle United if upheld.
"It was alleged a comment Ferdinand posted on his twitter account was abusive and/or indecent and/or insulting and/or improper," read an FA statement.
"It was further alleged that this breach was aggravated pursuant to FA Rule E3(2) as the comment included a reference to gender.
"Following an Independent Regulatory Commission hearing on Wednesday 29 October, Ferdinand was also fined £25,000, severely warned as to his future conduct and ordered to attend an education programme, arranged by the FA within four months."
