A correction device comprises a banknote passage composed of a first passage plate (101) and a second passage plate (102). Correction wheels (004) having a correction direction inclined to the reference side of the banknote passage are disposed inside the banknote passage. A plurality of correction wheels (004) is separately arranged along a conveying direction of the banknote passage and gradually approaches the reference side. A side guide mechanism (009) is mounted on the reference side and is used for driving the banknotes, arriving at the reference side, to move towards the conveying direction of the banknote passage. A correction adjusting wheel (010) is arranged at the tail end of the inclining direction of the plurality of the correction wheels (004) at the position close to the reference side. The correction direction of the correction adjusting wheel inclines to the reference side. The structure prevents the banknotes from being jammed between reference walls in a passage during the correcting process. Also provided is an automated teller machine comprising the correction device.