Abstract: A slitting apparatus including a frame, a rotary shaft mounted on the frame, a plurality of laterally stationary circular blades secured to the rotary shaft, and a plurality of laterally movable circular blades movable in the direction along which the stationary blades are disposed and rotatable in slidable contact with the stationary blades so that a sheet passing through between the stationary blades and the movable blades is slit therewith into plural strips each having a width being adjusted by moving the movable blades. A stationary rack extends in parallel with the rotary shaft. A carrier is movable back and forth along the rack.