A method for manufacturing a hollow needle-shaped body having a through hole of a good shape, and a hollow needle-shaped body are provided. The method for manufacturing a hollow needle-shaped body (1) according to the present invention includes a first step of manufacturing a needle-shaped body (5) having a substrate (2) and a projection (3) formed on one surface of the substrate (2), which is a projection forming surface, and a second step of forming a through hole (4) that penetrates through the substrate (2) and the projection (3) by radiating a laser beam onto the other surface of the substrate (2), which is a non-projection forming surface. The substrate (2) and the projection (3) are made of crystallized polyglycolic acid.
