PURPOSE: To provide a paper sheet conveying device capable of bringing movable sheet feed rollers into contact with each other or separating them with a simple structure and suitable for miniaturization.

CONSTITUTION: Movable sheet feed rollers 58, 59 pressed by the excitation force of a torsion spring 67 are brought into contact with or separated from unmovable sheet feed rollers 26, 27 by a movable cam 91 over the contact position and separate position. The cam 91 is provided with a rack 96 extended in the moving direction, a cam driving gear 97 is meshed with the rack 96, the cam 91 is moved over the contact position and separate position by the rotation of the driving gear 97, and the movable sheet feed rollers 58, 69 are brought into contact with or separated from the sheet feed rollers 26, 27.