The invention provides an infusion pump that allows a health-care professional to avoid, through a visual check, installing an infusion tube in an incorrect installation direction during installation of the infusion tube and that enables the drug to be correctly delivered from upstream side to downstream side of the infusion tube along a preset delivery direction. An infusion pump 1 in which an infusion tube allowing a drug 171 in a drug containing bag 170 to be infused to a patient P is installed in a lateral direction (horizontal direction or X direction) and in which a delivery driving unit 60 applies peristaltic motion to the infusion tube 200 to deliver the drug 171 in a delivery direction T preset along the lateral direction. The infusion pump 1 has a tube installation unit 50 in which the infusion tube 200 is installed in the lateral direction, and the tube installation unit 50 includes an infusion tube set direction display unit 150 that displays an upstream side 200A and a downstream side 200B of the infusion tube 200.