This　paper　presents　a　micro　induction　heater　based　on　the　principle　of　induction　heating.　The　liquid　contact　with　the　micro　heater　core　directly　and　heated　by　the　eddy　current　effect.　The　heating　effect　of　the　micro　heater　is　simulated　with　the　software　of　COMSOL.　The　simulation　results　indicate　that　the　temperature　of　the　micro　heater　core　can　reach　to　540K　in　0.9s　while　the　current　is　0.7A　and　the　power　frequency　is　200　kHz.　The　relations　between　the　heating　effect　and　the　micro　induction　heater＇s　parameters　such　as　the　current,　the　AC　power　frequency　and　the　coil＇s　parameters　are　studied　in　the　simulation　respectively.　The　prototype　of　the　micro　heater　has　been　fabricated　and　the　experimental　test　has　carried　with　the　micro　heater.　The　experiments　indicated　that　the　micro　heater　can　generate　thermal　bubble　in　0.3s　while　the　1.0A　high　frequency　current　passes　through　the　heater　coil.　The　micro　induction　heater　can　be　applied　to　a　variety　of　thermal　bubble　devices,　such　as　micro　injector,　micro　switch　and　micro　pump.