By　establishing　the　induction　motors　stator　temperature　distribution　test　system,　temperature　distributions　of　induction　motor　stator　winding　under　typical　operating　conditions　are　tested　in　this　paper.　Based　on　measured　temperature　distribution　data,　characteristics　of　motor　stator　temperature　distribution　are　analyzed.　It　draws　the　conclusion　that　the　maximum　temperature　of　stator　winding　is　located　at　shaft　side　end-windings　at　terminal　box　side.　Based　on　thermal　theory　of　induction　motor,　induction　motor　stator　3D　temperature　field　simulation　model　is　established　to　research　temperature　distributions　in　more　operating　stations.　And　the　broad　applicability　of　the　stator　windings＇　maximum　temperature　region　which　is　determined　by　test　is　verified.　On　this　basis,　integrated　motor　protection　ideas　and　specific　protect　program　based　on　stator　current　and　the　maximum　temperature　are　proposed.　The　scheme　will　ensure　the　safety　of　motor　and　maximize　the　role　of　the　electric　motor.　It　can　reduce　and　even　avoid　the　losses　caused　by　interruption　of　the　production　process.