An installation member and a peristaltic pump are provided that allow work of attachment and work of detachment of a flexible tube to be peristaltic to and from a stator to be performed more easily and smoothly. An installation member (12) that is to be detachably attached to a peristaltic pump including: a stator (6) including an attachment recessed portion (6a), in which a flexible tube (D) to be peristaltic, is attached a rotor (7) that is rotatably driven in the attachment recessed portion (6a) and a roller (8) that causes the fluid to flow by imparting peristaltic motion to the flexible tube (D) to be peristaltic attached to the attachment recessed portion (6a) in a longitudinal direction in association with rotation of the rotor (7) while compressing the flexible tube (D) to be peristaltic in a radial direction. The installation member including: a main body (13) that is attachable to a predetermined portion of the stator, and that is formed integrally with a downstream-side fixing portion (Db) of the flexible tube (D) to be peristaltic and a notch portion (13a) that allows an upstream-side fixing portion (Da) of the flexible tube (D) to be peristaltic to be positioned.
