An infusion pump includes: a main body； a tube attachment section inside the main body； a liquid feed driving unit inside the main body； an access cover mounted on the main body and for covering the infusion tube when the infusion tube is attached to the tube attachment section when closed； and a bubble detection unit for detecting a bubble inside the infusion tube when the infusion tube is attached to the tube attachment section. The bubble detection unit includes a first member at the access cover and a second member at the main body.
