The invention discloses a knotter driven by double fluted disc. The knotter driven by double fluted disc comprises a small fluted disc, a knotter rack, a large fluted disc, a cutter arm assembled on the knotter rack, a knotter jaw and bill hook combined mechanism (R), a rope gripper driving mechanism (Q) and a rope gripper (J), wherein a composite fluted disc of traditional D-knotter is divided into the small fluted disc and the large fluted disc in the knotter driven by double fluted disc.
