The present invention relates to an InP/ZnS core-shell quantum dot manufacturing method and an InP/ZnS core-shell quantum dot manufactured thereby, and more particularly, to prepare an InP/ZnS core-shell quantum dot through a single precursor injection. It's about how. In one aspect of the method for manufacturing InP/ZnS core-shell quantum dots according to an embodiment of the present invention, the first and second precursors forming the core of the quantum dots and the third precursor forming the shell of the quantum dots are dissolved in a first solvent. A first precursor solution manufacturing step in which the prepared first precursor solution is heated to a predetermined temperature; A second precursor solution manufacturing step in which a fourth precursor forming a shell together with the third precursor is dissolved in a second solvent to prepare a second precursor solution; A mixed solution preparation step of preparing a mixed solution by mixing the heated first precursor solution and the second precursor solution; A mixed solution heating step in which the mixed solution is heated to a predetermined temperature to produce a quantum dot composed of an InP core and a ZnS shell; Includes.
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