An　experimental　investigation　on　heat　transfer　performance　of　a　micro　capillary　groove　evaporator　for　heat　dissipation　of　high　power　electronic　chip　had　been　performed.　The　binary　liquid　mixture　used　in　this　experiment　was　2-Methylpentane　and　methanol.　Compared　with　the　available　results　in　the　previous　studies,　the　experimental　results　showed　that　the　temperature　of　the　chip　could　be　reduced　in　the　range　of　7-9°C　at　the　same　heat　flux.