A punching apparatus for a wire-binding book comprising a table arranged at an upper portion of a supporting plate, wherein an object for wire binding can be placed on the table, first and second alignment plates (13, 14) arranged at a center portion of the table and configured to be rotatable or movable upward and/or downward, a punching device mounted to a back portion of the table and comprising a punch pin punching a coupling hole in an object for binding into which a wire is inserted, a binding object transferring unit moving the object for binding to the punching device and returning the object for binding, the binding object transferring unit comprising: a main body comprising a lower portion plate mounted on a supporting plate, a vertical plate coupled to both sides of the lower portion plate and a upper portion plate configured to be open at a center thereof and fixed to an upper portion of the vertical plate; a first LM guide comprising a rail fixed to an upper side of the lower portion plate of the main body, and a block slidably coupled to the rail; a saddle fixed on the block of the first LM guide and continuously forming a plurality of stair layers (51a-5e) in a side thereof from a lower portion to a upper portion; a plurality of unit transferring units dividing the object for binding placed on the table, arranging positions of clips holding sheet units higher in order and mounted to each of the stair layers (51a-5e); and a saddle transferring unit comprising a supporting plate fixed to a back portion of the saddle, a first cylinder fixing a front portion of a operation axis to the supporting plate, a fixing plate fixing a back portion of the first cylinder, and a screw pole which is screw-coupled to one side of the fixing plate, wherein the screw pole's front portion is coupled with a handle to move a portion of the fixing plate, the screw pole rotatably mounted to front and back supporting plates (82, 83) fixed to the lower portion plate or the vertical plate of the main body. a main body comprising a lower portion plate mounted on a supporting plate, a vertical plate coupled to both sides of the lower portion plate and a upper portion plate configured to be open at a center thereof and fixed to an upper portion of the vertical plate; a lower portion plate mounted on a supporting plate, a vertical plate coupled to both sides of the lower portion plate and a upper portion plate configured to be open at a center thereof and fixed to an upper portion of the vertical plate; a first LM guide comprising a rail fixed to an upper side of the lower portion plate of the main body, and a block slidably coupled to the rail; a rail fixed to an upper side of the lower portion plate of the main body, and a block slidably coupled to the rail; a saddle fixed on the block of the first LM guide and continuously forming a plurality of stair layers (51a-5e) in a side thereof from a lower portion to a upper portion; a plurality of unit transferring units dividing the object for binding placed on the table, arranging positions of clips holding sheet units higher in order and mounted to each of the stair layers (51a-5e); and a saddle transferring unit comprising a supporting plate fixed to a back portion of the saddle, a first cylinder fixing a front portion of a operation axis to the supporting plate, a fixing plate fixing a back portion of the first cylinder, and a screw pole which is screw-coupled to one side of the fixing plate, a supporting plate fixed to a back portion of the saddle, a first cylinder fixing a front portion of a operation axis to the supporting plate, a fixing plate fixing a back portion of the first cylinder, and a screw pole which is screw-coupled to one side of the fixing plate, wherein the screw pole's front portion is coupled with a handle to move a portion of the fixing plate, the screw pole rotatably mounted to front and back supporting plates (82, 83) fixed to the lower portion plate or the vertical plate of the main body.