The invention relates to a medium pick-up apparatus, a medium processing device, and a financial device. The pick-up apparatus comprises a support plate to support a medium, a pick-up roller unit comprising a pick-up roller for picking up the medium, a detection unit to detect the number of medium that is picked up by the pick-up roller, and a pick-up roller moving device to move the pick-up roller unit to space the pick-up roller unit from the medium supported by the support plate when the pick-up of predetermined number of medium is detected by the detection unit.