Provided is the sheet bundle transport apparatus including: an abutment unit that performs switching between an abutment state at a predetermined position and a non-abutment state; first and second press units that press the sheet bundle against first and second transport units; a press switching unit that performs switching between a first press state where the first and second press units press the sheet bundle in a predetermined region located upstream from the predetermined position in the transport direction and a second press state where the first press unit does not press the sheet bundle in the predetermined region; and a control unit that controls the abutment unit and the press switching unit to switch the non-abutment state to the abutment state and switch the first press state to the second press state so as to change an angle relative to the width direction of a predetermined sheet bundle.