The utility model provides a novel adjustable foot -operated stapler, including the base, welded support on the base, the one end of support is equipped with the nail chopping block, the articulated aircraft nose of stapling together of the other end of support, stapling together and being equipped with nail storehouse and ejector pin ware in the aircraft nose, the aircraft nose front end of stapling together is equipped with the clamp plate of stapling together, aircraft nose front end both sides extend and to have the detachable connecting rod, connecting rod and pedal fixed connection, pedal below is equipped with a reset spring, pedal the place ahead is connected to the support through the 2nd reset spring on, pedal going up to double -deck footboard, upper footboard angularly adjustable. The utility model discloses laborsaving effect is obvious, can obviously reduce the required dynamics of operation, easy operation, and the whole adaptation of pedal height -adjustable different height operators use, and the chopping block extensible adapts to the binding work of different area books more simultaneously.