In　the　present　paper,　the　influence　of　hole　site　on　heat　transfer　characteristics　is　numerically　studied　by　changing　one　film　cooling　hole　location.　The　results　indicate　that　the　area　averaged　film　cooling　effectiveness　on　rim　surface　is　lower　than　that　on　groove　floor,　while　the　area　averaged　film　cooling　heat　transfer　coefficients　on　rim　surface　is　higher　than　that　on　groove　floor.　When　the　single　hole　location　moves　to　leading　edge,　the　heat　transfer　coefficients　increase　firstly,　then　decrease,　and　the　lower　zone　of　film　cooling　effectiveness　fades　away.