To provide a method of manufacturing the barrel plate of a cartridge which is capable of downsizing facilities and an apparatus for the same.

This apparatus 10 for manufacturing the barrel plate of the cartridge comprises a sheet feeding station 18, a corner cutting station 22, a small diameter bending and folding station 22, and both end bending station 24 in the working section 11 of the preceding stage for forming a metal sheet 30 to a cymbiform. Namely, the apparatus 10 for manufacturing comprises integrating the small diameter bending station and the folding station which are heretofore separately installed to constitute the small diameter bending and folding station 22, thereby downsizing the facilities.