Abstract: A device for roiling up flat dough around or without a filling to produce a rolled food product is comprised of: a first belt having an end and moving in a first direction toward the end to convey the dough with or without the filling laid on the first belt; a second belt so disposed adjacent to the end as to make the dough conveyed in the first direction be brought into contact with the second belt to curve the dough and movable in a second direction perpendicular to the first direction; and holding members arranged along the first belt to guide the dough curved along the second belt around along the holding members, whereby rolling up the dough.