Method for manufacturing thin strip sheet

Provided is a method for manufacturing a thin strip sheet capable of suppressing damage to a rotary die-cutting machine. This method for manufacturing a thin-strip sheet is provided with a punching step for punching a thin-strip sheet from a thin strip using a rotary die-cutting machine provided with a die roll and an anvil roll, and is characterized in that: the die roll comprises a die roll body having a cutting blade protruding from the outer peripheral surface thereof; the anvil roll includes an anvil roll main body provided with a groove on the outer peripheral surface thereof, the groove being capable of fitting with the cutting blade with a gap therebetween, and the anvil roll main body is inserted into the groove when the thin strip is passed between the die roll and the anvil roll. While the thin strip is clamped and pressed between die roller side elastic bodies arranged on the two sides of the base end part of a cutting blade arranged on the outer peripheral surface of a die roller main body and th