A method for manufacturing a needle tapered along the longitudinal direction by electroforming comprises: a step of immersing a core material (122) having an outer peripheral surface that is tapered along the longitudinal direction in an electrolyte and forming a first electroformed body (126) on an outer peripheral surface (124) of the core material (122); a step of immersing the first electroformed body (126) in an electrolyte to which particles having a prescribed particle size are added and forming a second electroformed body (134) having multiple protrusions (30) on an outer peripheral surface (128) of the first electroformed body (126); a step of cutting the first electroformed body (126) and second electroformed body (134) into a prescribed length and forming a needle (10) having a sharp needle tip (16); and a step of pulling out the core material (122) from the cut first electroformed body (126).