A system for folding a ribbon stock, the system including: a transferring unit; a guide member having a passage for guiding the ribbon stock, the passage defining a longitudinal axis; a folding means supported to revolve and move in a direction substantially transverse to the longitudinal axis for applying a force against the ribbon stock passing through the guide member; a driving means; a supporting frame; a fixing body having a predetermined length and a guide entrance operatively connected with the guide member, wherein ends of the fixing body are rotatably fixed to the supporting frame, the fixing body having a guide slot formed therein for insertably receiving the folding means; and a pair of rotary bodies rotatably connected to the ends of the fixing body for revolving the folding means, the pair of rotary bodies configured to insertably receive the folding means.