To　gain　the　realistic　MPEG-4　facial　animation,　Independent　Component　Analysis　(ICA)　is　applied　to　the　pattern　extraction　of　facial　animation　parameters　(FAPs).　By　studying　the　independent　sources　and　their　project　on　human　expression,　some　steady　independent　components　are　extracted　to　come　into　being.　Experiment　results　show　that　MPEG-4　facial　animation　based　on　ICA　space　is　more　robust　and　more　realistic.