Abstract: An object is to eliminate waste of resources and achieve cost reduction and improved productivity. A stitcher includes a stitcher head configured to perform a reciprocating movement and a wire feed unit configured to feed a wire to the stitcher head and performs wire stitching on a paper bundle arranged at a wire stitching position in each cycle of the reciprocating movement of the stitcher head. The stitcher control device includes: a determination unit that determines in each cycle of the stitcher head whether or not thickness information on a paper bundle to be subjected to wire stitching in a next cycle is acquired; and a wire feed control unit that, when it is determined that the thickness information on the paper bundle to be subjected to wire stitching in the next cycle is not acquired, controls the wire feed unit not to supply a wire in the current cycle.