Provided is a method for manufacturing a microneedle array, which enables efficient and stable manufacturing of a microneedle array including a needle-shaped protrusion having a constricted shape. The method for manufacturing a microneedle array includes: a first cutting step of forming a needle-shaped protrusion by cutting a base material by a first cutting tool; a second cutting step of forming a constricted shape in the needle-shaped protrusion by cutting a part of the needle-shaped protrusion by a second cutting tool different from the first cutting tool; a mold forming step of molding, from a plate precursor manufactured through the first cutting step and the second cutting step, a resin mold having a needle-shaped hole which has an inverted shape of the plate precursor; a first array manufacturing step of filling the needle-shaped hole of the resin mold with a drug solution and then drying the drug solution; a second array manufacturing step of filling the needle-shaped hole with a base material solution and drying the base material solution, after the first array manufacturing step; and a peeling step of peeling, from the resin mold, a microneedle array manufactured by the resin mold.