Research　on　temperature　distribution　of　induction　motor　stator　is　important　for　reliable　operation　of　induction　motor.　Aiming　at　the　problems　and　difficulties　in　actual　test,　a　new　idea　of　virtual　test　of　induction　motor　stator　temperature　distribution　based　on　a　3D　temperature　field　simulation　model　is　proposed　in　this　paper.　Meanwhile,　a　virtual　test　system　of　induction　motor　stator　temperature　distribution　is　established.　Due　to　the　parametric　design　adopted　by　the　virtual　test　system,　the　virtual　test　for　a　variety　of　induction　motors　can　be　performed,　only　by　simply　modifying　the　parameters　of　the　motor.　The　steady-state　temperature　distribution　and　transient　temperature　change　of　the　motor　can　be　measured　under　all　kinds　of　running　states　including　the　fault　one.　The　temperature　value　and　temperature　distribution　at　any　position　within　the　motor　at　any　instant　can　be　obtained　with　the　virtual　test.　Experimental　results　show　that　the　proposed　virtual　test　system　has　good　accuracy.