To provide a small-sized and inexpensive infusion pump having a superior sliding property in a sliding surface such as finger plates, disk cams and a guide section and actuated by a driving motor of low torque and power saving type; and a manufacturing method of the infusion pump having excellent working efficiency.

This peristalsis type infusion pump is provided with a plurality of disk cams 12 and 13 fixed to a rotary shaft 16 supported by bearings 14 and 15, a plurality of finger plates coming into contact with the outer circumferential faces of the disk cams and reciprocating with the eccentric rotation of the disk cams, and a guide section slidably clamping the finger plates; the disk cams 12 and 13 are resin molding bodies each having a through-hole in the eccentric position, and the top dead center surface of the disk cam is so assembled and connected to the rotary shaft 16 as to sequentially move and go round in the rotating direction of the rotary shaft 16 through the through-hole.