The　achievements　and　present　situations　of　the　study　on　the　temperature　characteristics　for　current　transformers　at　home　and　abroad　in　recent　years　are　reviewed　and　the　problems　and　defects　of　it　are　pointed　out　in　this　paper.　Starting　from　the　principle　of　the　error　calculation,　three　influential　factors　of　the　error　for　current　transformers　are　obtained.　The　temperature　characteristics　on　these　factors　are　analyzed　in　theory.　Finally　the　improved　methods　on　the　research　of　temperature　characteristics　for　current　transformers　and　the　research　emphasis　in　the　future　are　put　forward.