To provide a binding apparatus for stacked paper leaves, in which the operation of a holding section for a binding tape can be easily controlled, a holding mechanism for the tape is not required, and the paper leaves can be bound well constantly without being affected by a property change of the tape caused by the decrease of its rigidity due to a structural weakness or humidity.

The binding apparatus is provided with a P load section loaded with stacked paper leaves P arranged in a binding space inside the binding apparatus, and the load section has a receiving tray 9 whose one face is in contact with the stacked paper leaves P. The binding apparatus further comprises a circulating means 3 circulating around the P load section, the tape holding section 10 which is provided on the circulating means for holding the starting end of the tape T in a sandwiched manner and is opened and closed freely, a tape feeder 15 for feeding the tape toward the holding section, which is the start position of the tape, opposite to the contact surface between the receiving tray 9 and the paper leaves P so as to give the tape tension as it is held by the starting end at the holding section and is circulated around the receiving tray and the paper leaves in contact with it at the contact surface, a tape press means arranged to move back and forth freely to the opposite surface against the contact surface of the receiving tray 9, a cutter 13 arranged to move back and forth freely to the opposite surface of the receiving tray and cuts the tape in a prescribed position, and a gluing means for gluing a prescribed position of the tape.