Using　1-octadecene　as　high-temperature　reaction　solvent,　Eu-doped　CdTe　quantum　dots　were　synthesized.　The　europium　precursor　was　prepared　by　dissolving　europium　chloride　into　tributyl　phosphate.　Cadmium　precursor　solution　was　prepared　by　dissolving　cadmium　acetate　into　oleylamine,　and　Te　precursor　solution　was　prepared　by　dissolving　tellurium　powder　into　trioctylphosphine.　CdTe　and　CdTe:Eu　quantum　dot　were　obtained　at　200.　The　experiment　results　indicate　that　the　fluorescence　peaks　of　the　quantum　dots　show　obvious　red　shift　with　the　increasing　of　europium　content,　but　extra　europium　will　lead　to　the　decrease　of　fluorescence　intensity.　©　2016,　Science　Press.　All　right　reserved.