With　the　development　of　science　and　technology,　computer　information　technology　has　been　widely　applied　in　education　and　scientific　research.　In　the　process　of　teaching,　properly　using　computer　technology　can　effectively　improve　the　teaching　quality.　This　paper　discusses　some　problems　which　Computer　information　technology　was　applied　in　mathematics　classroom　teaching　and　mathematics　research-oriented　teaching.　By　changing　the　traditional　teaching　mode,　Computer　information　technology　could　not　only　stimulate　the　students＇　study　enthusiasm　and　initiative,　but　aslo　promote　teaching　idea　transformation.　©　2011　IEEE.